Sequence Database

A database with 662107 machine generated integer and decimal sequences.

Displaying the first 100 of 744 results.

Sequence xzwufrv2ulxsb

0, 1, 2, 3, 0, 1, 2, 3, 0, 1, 2, 3, 0, 1, 2, 3, 0, 1, 2, 3, 0, 1, 2, 3, 0, 1, 2, 3, 0, 1, 2, 3, 0, 1, 2, 3, 0, 1, 2, 3, 0, 1, 2, 3, 0, 1, 2, 3, 0, 1, more...

integer, periodic-4, non-monotonic, +, A010873

a(n)=n%4
n≥0
3 operations
Divisibility
a(n)=n%(2^2)
n≥0
5 operations
Power

Sequence 4w3ihkvsbbqab

4, 1, 2, 1, 4, 1, 2, 1, 4, 1, 2, 1, 4, 1, 2, 1, 4, 1, 2, 1, 4, 1, 2, 1, 4, 1, 2, 1, 4, 1, 2, 1, 4, 1, 2, 1, 4, 1, 2, 1, 4, 1, 2, 1, 4, 1, 2, 1, 4, 1, more...

integer, periodic-4, non-monotonic, +, A109008

a(n)=gcd(n, 4)
gcd(a,b)=greatest common divisor
n≥0
3 operations
Divisibility
a(n)=gcd(n, 2^2)
gcd(a,b)=greatest common divisor
n≥0
5 operations
Power

Sequence 1tmcbsm2njd2b

-4, -1, -2, -1, -4, -1, -2, -1, -4, -1, -2, -1, -4, -1, -2, -1, -4, -1, -2, -1, -4, -1, -2, -1, -4, -1, -2, -1, -4, -1, -2, -1, -4, -1, -2, -1, -4, -1, -2, -1, -4, -1, -2, -1, -4, -1, -2, -1, -4, -1, more...

integer, periodic-4, non-monotonic, -

a(n)=-gcd(n, 4)
gcd(a,b)=greatest common divisor
n≥0
4 operations
Divisibility

Sequence jnqndce223s5n

-0.7568024953, 0.8414709848, 0.9092974268, 0.8414709848, -0.7568024953, 0.8414709848, 0.9092974268, 0.8414709848, -0.7568024953, 0.8414709848, 0.9092974268, 0.8414709848, -0.7568024953, 0.8414709848, 0.9092974268, 0.8414709848, -0.7568024953, 0.8414709848, 0.9092974268, 0.8414709848, -0.7568024953, 0.8414709848, 0.9092974268, 0.8414709848, -0.7568024953, 0.8414709848, 0.9092974268, 0.8414709848, -0.7568024953, 0.8414709848, 0.9092974268, 0.8414709848, -0.7568024953, 0.8414709848, 0.9092974268, 0.8414709848, -0.7568024953, 0.8414709848, 0.9092974268, 0.8414709848, -0.7568024953, 0.8414709848, 0.9092974268, 0.8414709848, -0.7568024953, 0.8414709848, 0.9092974268, 0.8414709848, -0.7568024953, 0.8414709848, more...

decimal, periodic-4, non-monotonic, +-

a(n)=sin(gcd(n, 4))
gcd(a,b)=greatest common divisor
n≥0
4 operations
Trigonometric

Sequence oqj1zu42jgqqb

-0.6536436209, 0.5403023059, -0.4161468365, 0.5403023059, -0.6536436209, 0.5403023059, -0.4161468365, 0.5403023059, -0.6536436209, 0.5403023059, -0.4161468365, 0.5403023059, -0.6536436209, 0.5403023059, -0.4161468365, 0.5403023059, -0.6536436209, 0.5403023059, -0.4161468365, 0.5403023059, -0.6536436209, 0.5403023059, -0.4161468365, 0.5403023059, -0.6536436209, 0.5403023059, -0.4161468365, 0.5403023059, -0.6536436209, 0.5403023059, -0.4161468365, 0.5403023059, -0.6536436209, 0.5403023059, -0.4161468365, 0.5403023059, -0.6536436209, 0.5403023059, -0.4161468365, 0.5403023059, -0.6536436209, 0.5403023059, -0.4161468365, 0.5403023059, -0.6536436209, 0.5403023059, -0.4161468365, 0.5403023059, -0.6536436209, 0.5403023059, more...

decimal, periodic-4, non-monotonic, +-

a(n)=cos(gcd(n, 4))
gcd(a,b)=greatest common divisor
n≥0
4 operations
Trigonometric

Sequence a2ahi5pmhacgl

0, -1, -2, -3, 0, -1, -2, -3, 0, -1, -2, -3, 0, -1, -2, -3, 0, -1, -2, -3, 0, -1, -2, -3, 0, -1, -2, -3, 0, -1, -2, -3, 0, -1, -2, -3, 0, -1, -2, -3, 0, -1, -2, -3, 0, -1, -2, -3, 0, -1, more...

integer, periodic-4, non-monotonic, -

a(n)=-n%4
n≥0
4 operations
Divisibility
a(n)=(a(n-1)-1)%(2^2)
a(0)=0
n≥0
7 operations
Power

Sequence vthgs0x2ujtcf

0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, more...

integer, periodic-4, non-monotonic, +, A021913

a(n)=a(n-1)-a(n-2)+a(n-3)
a(0)=0
a(1)=0
a(2)=1
n≥0
5 operations
Recursive
a(n)=floor(n/2)%2
n≥0
6 operations
Divisibility
a(n)=a(n-1)^a(n-1)-a(n-2)
a(0)=0
a(1)=0
n≥0
5 operations
Power
a(n)=ceil(cos(a(n-1))-a(n-2))
a(0)=0
a(1)=0
n≥0
5 operations
Trigonometric
a(n)=a(n-1)!-a(n-2)
a(0)=0
a(1)=0
n≥0
4 operations
Combinatoric

Sequence uqbnwjmnvbqti

0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, more...

integer, periodic-4, non-monotonic, +

a(n)=(n+a(n-1))%2
a(0)=0
n≥0
5 operations
Divisibility
a(n)=a(n-1)-a(n-2)+a(n-3)
a(0)=0
a(1)=1
a(2)=1
n≥0
5 operations
Recursive
a(n)=a(n-1)^a(n-1)-a(n-2)
a(0)=0
a(1)=1
n≥0
5 operations
Power
a(n)=ceil(cos(a(n-1))-a(n-2))
a(0)=0
a(1)=1
n≥0
5 operations
Trigonometric
a(n)=a(n-1)!-a(n-2)
a(0)=0
a(1)=1
n≥0
4 operations
Combinatoric

Sequence 3c3jmze5xsibo

0, 1, 4, 3, 0, 1, 4, 3, 0, 1, 4, 3, 0, 1, 4, 3, 0, 1, 4, 3, 0, 1, 4, 3, 0, 1, 4, 3, 0, 1, 4, 3, 0, 1, 4, 3, 0, 1, 4, 3, 0, 1, 4, 3, 0, 1, 4, 3, 0, 1, more...

integer, periodic-4, non-monotonic, +

a(n)=floor(exp(tan(a(n-1))))
a(0)=0
n≥0
4 operations
Trigonometric

Sequence 2xfnot4cysded

0, 1.5574077247, 1.1578212823, -0.1425465431, 0, 1.5574077247, 1.1578212823, -0.1425465431, 0, 1.5574077247, 1.1578212823, -0.1425465431, 0, 1.5574077247, 1.1578212823, -0.1425465431, 0, 1.5574077247, 1.1578212823, -0.1425465431, 0, 1.5574077247, 1.1578212823, -0.1425465431, 0, 1.5574077247, 1.1578212823, -0.1425465431, 0, 1.5574077247, 1.1578212823, -0.1425465431, 0, 1.5574077247, 1.1578212823, -0.1425465431, 0, 1.5574077247, 1.1578212823, -0.1425465431, 0, 1.5574077247, 1.1578212823, -0.1425465431, 0, 1.5574077247, 1.1578212823, -0.1425465431, 0, 1.5574077247, more...

decimal, periodic-4, non-monotonic, +-

a(n)=tan(floor(exp(a(n-1))))
a(0)=0
n≥0
4 operations
Trigonometric

Sequence sqg5bzzeuraef

1, -2, -3, -1, 1, -2, -3, -1, 1, -2, -3, -1, 1, -2, -3, -1, 1, -2, -3, -1, 1, -2, -3, -1, 1, -2, -3, -1, 1, -2, -3, -1, 1, -2, -3, -1, 1, -2, -3, -1, 1, -2, -3, -1, 1, -2, -3, -1, 1, -2, more...

integer, periodic-4, non-monotonic, +-

a(n)=floor(tan(-a(n-1)))
a(0)=1
n≥0
4 operations
Trigonometric

Sequence pvkf2ndgzxhmo

1, -1, 2, 3, 1, -1, 2, 3, 1, -1, 2, 3, 1, -1, 2, 3, 1, -1, 2, 3, 1, -1, 2, 3, 1, -1, 2, 3, 1, -1, 2, 3, 1, -1, 2, 3, 1, -1, 2, 3, 1, -1, 2, 3, 1, -1, 2, 3, 1, -1, more...

integer, periodic-4, non-monotonic, +-

a(n)=ceil(tan(-a(n-1)))
a(0)=1
n≥0
4 operations
Trigonometric

Sequence pdiryyzosolm

1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, more...

integer, periodic-4, non-monotonic, +

a(n)=(n+a(n-1))%2
a(0)=1
n≥0
5 operations
Divisibility
a(n)=a(n-1)-a(n-2)+a(n-3)
a(0)=1
a(1)=0
a(2)=0
n≥0
5 operations
Recursive
a(n)=a(n-1)^a(n-1)-a(n-2)
a(0)=1
a(1)=0
n≥0
5 operations
Power
a(n)=ceil(cos(a(n-1))-a(n-2))
a(0)=1
a(1)=0
n≥0
5 operations
Trigonometric
a(n)=a(n-1)!-a(n-2)
a(0)=1
a(1)=0
n≥0
4 operations
Combinatoric

Sequence c5orlud3hy4xl

1, 1, -1, -1, 1, 1, -1, -1, 1, 1, -1, -1, 1, 1, -1, -1, 1, 1, -1, -1, 1, 1, -1, -1, 1, 1, -1, -1, 1, 1, -1, -1, 1, 1, -1, -1, 1, 1, -1, -1, 1, 1, -1, -1, 1, 1, -1, -1, 1, 1, more...

integer, periodic-4, non-monotonic, +-, A057077

a(n)=n%a(n-1)-a(n-2)
a(0)=1
a(1)=1
n≥0
5 operations
Divisibility
a(n)=-abs(a(n-1))*a(n-2)
a(0)=1
a(1)=1
n≥0
5 operations
Recursive
a(n)=(-a(n-2))^a(n-1)
a(0)=1
a(1)=1
n≥0
4 operations
Power
a(n)=floor(cos(a(n-1))-a(n-2))
a(0)=1
a(1)=1
n≥0
5 operations
Trigonometric

Sequence p3uxz51smmhwb

1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, more...

integer, periodic-4, non-monotonic, +, A133872

a(n)=a(n-1)!-a(n-2)
a(0)=1
a(1)=1
n≥0
4 operations
Combinatoric
a(n)=(1+n+a(n-1))%2
a(0)=1
n≥0
7 operations
Divisibility
a(n)=a(n-1)^a(n-1)-a(n-2)
a(0)=1
a(1)=1
n≥0
5 operations
Power
a(n)=ceil(cos(a(n-1))-a(n-2))
a(0)=1
a(1)=1
n≥0
5 operations
Trigonometric
a(n)=(1+a(n-1))/(1+a(n-1))-a(n-2)
a(0)=1
a(1)=1
n≥0
9 operations
Recursive

Sequence q5q0lhqhpcinm

1, 1, 2, 6, 1, 1, 2, 6, 1, 1, 2, 6, 1, 1, 2, 6, 1, 1, 2, 6, 1, 1, 2, 6, 1, 1, 2, 6, 1, 1, 2, 6, 1, 1, 2, 6, 1, 1, 2, 6, 1, 1, 2, 6, 1, 1, 2, 6, 1, 1, more...

integer, periodic-4, non-monotonic, +

a(n)=(n%4)!
n≥0
4 operations
Combinatoric

Sequence mfely0upq0nwm

1, 1.5574077247, 826.7926316054, 0, 1, 1.5574077247, 826.7926316054, 0, 1, 1.5574077247, 826.7926316054, 0, 1, 1.5574077247, 826.7926316054, 0, 1, 1.5574077247, 826.7926316054, 0, 1, 1.5574077247, 826.7926316054, 0, 1, 1.5574077247, 826.7926316054, 0, 1, 1.5574077247, 826.7926316054, 0, 1, 1.5574077247, 826.7926316054, 0, 1, 1.5574077247, 826.7926316054, 0, 1, 1.5574077247, 826.7926316054, 0, 1, 1.5574077247, 826.7926316054, 0, 1, 1.5574077247, more...

decimal, periodic-4, non-monotonic, +

a(n)=tan(a(n-1))^a(n-1)
a(0)=1
n≥0
4 operations
Trigonometric

Sequence xlcm2wcoodxwg

1, 2, 1, -2, 1, 2, 1, -2, 1, 2, 1, -2, 1, 2, 1, -2, 1, 2, 1, -2, 1, 2, 1, -2, 1, 2, 1, -2, 1, 2, 1, -2, 1, 2, 1, -2, 1, 2, 1, -2, 1, 2, 1, -2, 1, 2, 1, -2, 1, 2, more...

integer, periodic-4, non-monotonic, +-

a(n)=(-a(n-2))^a(n-1)
a(0)=1
a(1)=2
n≥0
4 operations
Power
a(n)=2*a(n-2)%a(n-1)-a(n-2)
a(0)=1
a(1)=2
n≥0
7 operations
Divisibility
a(n)=(a(n-1)-a(n-2))/(a(n-1)-1/a(n-2))
a(0)=1
a(1)=2
n≥0
9 operations
Recursive

Sequence kdovtoyvze0pn

1, 2, 1, 0.5, 1, 2, 1, 0.5, 1, 2, 1, 0.5, 1, 2, 1, 0.5, 1, 2, 1, 0.5, 1, 2, 1, 0.5, 1, 2, 1, 0.5, 1, 2, 1, 0.5, 1, 2, 1, 0.5, 1, 2, 1, 0.5, 1, 2, 1, 0.5, 1, 2, 1, 0.5, 1, 2, more...

decimal, periodic-4, non-monotonic, +

a(n)=a(n-2)^-a(n-1)
a(0)=1
a(1)=2
n≥0
4 operations
Power
a(n)=1-a(n-1)+a(n-1)/a(n-2)
a(0)=1
a(1)=2
n≥0
7 operations
Recursive
a(n)=ceil(sin(a(n-1)))/a(n-2)
a(0)=1
a(1)=2
n≥0
5 operations
Trigonometric
a(n)=pt(floor(a(n-1)))/a(n-2)
a(0)=1
a(1)=2
pt(n)=Pascals triangle by rows
n≥0
5 operations
Combinatoric
a(n)=ϕ(ceil(a(n-1)))/a(n-2)
a(0)=1
a(1)=2
ϕ(n)=number of relative primes (Euler's totient)
n≥0
5 operations
Prime

Sequence t1hsf0m24gnbc

1, 4, 3, 0, 1, 4, 3, 0, 1, 4, 3, 0, 1, 4, 3, 0, 1, 4, 3, 0, 1, 4, 3, 0, 1, 4, 3, 0, 1, 4, 3, 0, 1, 4, 3, 0, 1, 4, 3, 0, 1, 4, 3, 0, 1, 4, 3, 0, 1, 4, more...

integer, periodic-4, non-monotonic, +

a(n)=floor(exp(tan(a(n-1))))
a(0)=1
n≥0
4 operations
Trigonometric

Sequence zae1bhgx2bp4k

1, 4.7465010457, 3.1829908777, 0.8671471937, 1, 4.7465010457, 3.1829908777, 0.8671471937, 1, 4.7465010457, 3.1829908777, 0.8671471937, 1, 4.7465010457, 3.1829908777, 0.8671471937, 1, 4.7465010457, 3.1829908777, 0.8671471937, 1, 4.7465010457, 3.1829908777, 0.8671471937, 1, 4.7465010457, 3.1829908777, 0.8671471937, 1, 4.7465010457, 3.1829908777, 0.8671471937, 1, 4.7465010457, 3.1829908777, 0.8671471937, 1, 4.7465010457, 3.1829908777, 0.8671471937, 1, 4.7465010457, 3.1829908777, 0.8671471937, 1, 4.7465010457, 3.1829908777, 0.8671471937, 1, 4.7465010457, more...

decimal, periodic-4, non-monotonic, +

a(n)=exp(tan(floor(a(n-1))))
a(0)=1
n≥0
4 operations
Trigonometric

Sequence oxpyfatqzr4dp

1.017343062, 1.2020569032, 1.0823232337, 1.2020569032, 1.017343062, 1.2020569032, 1.0823232337, 1.2020569032, 1.017343062, 1.2020569032, 1.0823232337, 1.2020569032, 1.017343062, 1.2020569032, 1.0823232337, 1.2020569032, 1.017343062, 1.2020569032, 1.0823232337, 1.2020569032, 1.017343062, 1.2020569032, 1.0823232337, 1.2020569032, 1.017343062, 1.2020569032, 1.0823232337, 1.2020569032, 1.017343062, 1.2020569032, 1.0823232337, 1.2020569032, 1.017343062, 1.2020569032, 1.0823232337, 1.2020569032, 1.017343062, 1.2020569032, 1.0823232337, 1.2020569032, 1.017343062, 1.2020569032, 1.0823232337, 1.2020569032, 1.017343062, 1.2020569032, 1.0823232337, 1.2020569032, 1.017343062, 1.2020569032, more...

decimal, periodic-4, non-monotonic, +

a(n)=ζ(gcd(n, 4))
gcd(a,b)=greatest common divisor
ζ(n)=Riemann Zeta
n≥0
4 operations
Prime

Sequence s2eylm4gialuj

1.1578212823, 1.5574077247, -2.1850398633, 1.5574077247, 1.1578212823, 1.5574077247, -2.1850398633, 1.5574077247, 1.1578212823, 1.5574077247, -2.1850398633, 1.5574077247, 1.1578212823, 1.5574077247, -2.1850398633, 1.5574077247, 1.1578212823, 1.5574077247, -2.1850398633, 1.5574077247, 1.1578212823, 1.5574077247, -2.1850398633, 1.5574077247, 1.1578212823, 1.5574077247, -2.1850398633, 1.5574077247, 1.1578212823, 1.5574077247, -2.1850398633, 1.5574077247, 1.1578212823, 1.5574077247, -2.1850398633, 1.5574077247, 1.1578212823, 1.5574077247, -2.1850398633, 1.5574077247, 1.1578212823, 1.5574077247, -2.1850398633, 1.5574077247, 1.1578212823, 1.5574077247, -2.1850398633, 1.5574077247, 1.1578212823, 1.5574077247, more...

decimal, periodic-4, non-monotonic, +-

a(n)=tan(gcd(n, 4))
gcd(a,b)=greatest common divisor
n≥0
4 operations
Trigonometric

Sequence pshv5zlqpdkeb

1.3862943611, 0, 0.6931471806, 0, 1.3862943611, 0, 0.6931471806, 0, 1.3862943611, 0, 0.6931471806, 0, 1.3862943611, 0, 0.6931471806, 0, 1.3862943611, 0, 0.6931471806, 0, 1.3862943611, 0, 0.6931471806, 0, 1.3862943611, 0, 0.6931471806, 0, 1.3862943611, 0, 0.6931471806, 0, 1.3862943611, 0, 0.6931471806, 0, 1.3862943611, 0, 0.6931471806, 0, 1.3862943611, 0, 0.6931471806, 0, 1.3862943611, 0, 0.6931471806, 0, 1.3862943611, 0, more...

decimal, periodic-4, non-monotonic, +

a(n)=log(gcd(n, 4))
gcd(a,b)=greatest common divisor
n≥0
4 operations
Power

Sequence tmayr2mrywy2i

2, 1, -2, 1, 2, 1, -2, 1, 2, 1, -2, 1, 2, 1, -2, 1, 2, 1, -2, 1, 2, 1, -2, 1, 2, 1, -2, 1, 2, 1, -2, 1, 2, 1, -2, 1, 2, 1, -2, 1, 2, 1, -2, 1, 2, 1, -2, 1, 2, 1, more...

integer, periodic-4, non-monotonic, +-

a(n)=(-a(n-2))^a(n-1)
a(0)=2
a(1)=1
n≥0
4 operations
Power

Sequence ay2hidoi1zisf

2, 1, 0.5, 1, 2, 1, 0.5, 1, 2, 1, 0.5, 1, 2, 1, 0.5, 1, 2, 1, 0.5, 1, 2, 1, 0.5, 1, 2, 1, 0.5, 1, 2, 1, 0.5, 1, 2, 1, 0.5, 1, 2, 1, 0.5, 1, 2, 1, 0.5, 1, 2, 1, 0.5, 1, 2, 1, more...

decimal, periodic-4, non-monotonic, +

a(n)=a(n-2)^-a(n-1)
a(0)=2
a(1)=1
n≥0
4 operations
Power
a(n)=ceil(sin(a(n-1)))/a(n-2)
a(0)=2
a(1)=1
n≥0
5 operations
Trigonometric
a(n)=pt(floor(a(n-1)))/a(n-2)
a(0)=2
a(1)=1
pt(n)=Pascals triangle by rows
n≥0
5 operations
Combinatoric
a(n)=ϕ(ceil(a(n-1)))/a(n-2)
a(0)=2
a(1)=1
ϕ(n)=number of relative primes (Euler's totient)
n≥0
5 operations
Prime

Sequence ammix3mvutr4k

2, 1, 1.4142135624, 1, 2, 1, 1.4142135624, 1, 2, 1, 1.4142135624, 1, 2, 1, 1.4142135624, 1, 2, 1, 1.4142135624, 1, 2, 1, 1.4142135624, 1, 2, 1, 1.4142135624, 1, 2, 1, 1.4142135624, 1, 2, 1, 1.4142135624, 1, 2, 1, 1.4142135624, 1, 2, 1, 1.4142135624, 1, 2, 1, 1.4142135624, 1, 2, 1, more...

decimal, periodic-4, non-monotonic, +

a(n)=sqrt(gcd(n, 4))
gcd(a,b)=greatest common divisor
n≥0
4 operations
Power

Sequence sxqnkahl5ex0h

2, 3, 1, -1, 2, 3, 1, -1, 2, 3, 1, -1, 2, 3, 1, -1, 2, 3, 1, -1, 2, 3, 1, -1, 2, 3, 1, -1, 2, 3, 1, -1, 2, 3, 1, -1, 2, 3, 1, -1, 2, 3, 1, -1, 2, 3, 1, -1, 2, 3, more...

integer, periodic-4, non-monotonic, +-

a(n)=ceil(tan(-a(n-1)))
a(0)=2
n≥0
4 operations
Trigonometric

Sequence tgpaqy45puhrh

3, 0, 1, 4, 3, 0, 1, 4, 3, 0, 1, 4, 3, 0, 1, 4, 3, 0, 1, 4, 3, 0, 1, 4, 3, 0, 1, 4, 3, 0, 1, 4, 3, 0, 1, 4, 3, 0, 1, 4, 3, 0, 1, 4, 3, 0, 1, 4, 3, 0, more...

integer, periodic-4, non-monotonic, +

a(n)=floor(exp(tan(a(n-1))))
a(0)=3
n≥0
4 operations
Trigonometric

Sequence 5xnkmczc54zob

3, 1, -1, 2, 3, 1, -1, 2, 3, 1, -1, 2, 3, 1, -1, 2, 3, 1, -1, 2, 3, 1, -1, 2, 3, 1, -1, 2, 3, 1, -1, 2, 3, 1, -1, 2, 3, 1, -1, 2, 3, 1, -1, 2, 3, 1, -1, 2, 3, 1, more...

integer, periodic-4, non-monotonic, +-

a(n)=ceil(tan(-a(n-1)))
a(0)=3
n≥0
4 operations
Trigonometric

Sequence 4mfr0d3gocucn

4, 3, 0, 1, 4, 3, 0, 1, 4, 3, 0, 1, 4, 3, 0, 1, 4, 3, 0, 1, 4, 3, 0, 1, 4, 3, 0, 1, 4, 3, 0, 1, 4, 3, 0, 1, 4, 3, 0, 1, 4, 3, 0, 1, 4, 3, 0, 1, 4, 3, more...

integer, periodic-4, non-monotonic, +

a(n)=floor(exp(tan(a(n-1))))
a(0)=4
n≥0
4 operations
Trigonometric

Sequence uypzkcnnj3fec

24, 1, 2, 1, 24, 1, 2, 1, 24, 1, 2, 1, 24, 1, 2, 1, 24, 1, 2, 1, 24, 1, 2, 1, 24, 1, 2, 1, 24, 1, 2, 1, 24, 1, 2, 1, 24, 1, 2, 1, 24, 1, 2, 1, 24, 1, 2, 1, 24, 1, more...

integer, periodic-4, non-monotonic, +

a(n)=gcd(n, 4)!
gcd(a,b)=greatest common divisor
n≥0
4 operations
Combinatoric

Sequence w0x25hzt4ngtc

32.9350615877, 21.0220396388, 25.0108575801, 21.0220396388, 32.9350615877, 21.0220396388, 25.0108575801, 21.0220396388, 32.9350615877, 21.0220396388, 25.0108575801, 21.0220396388, 32.9350615877, 21.0220396388, 25.0108575801, 21.0220396388, 32.9350615877, 21.0220396388, 25.0108575801, 21.0220396388, 32.9350615877, 21.0220396388, 25.0108575801, 21.0220396388, 32.9350615877, 21.0220396388, 25.0108575801, 21.0220396388, 32.9350615877, 21.0220396388, 25.0108575801, 21.0220396388, 32.9350615877, 21.0220396388, 25.0108575801, 21.0220396388, 32.9350615877, 21.0220396388, 25.0108575801, 21.0220396388, 32.9350615877, 21.0220396388, 25.0108575801, 21.0220396388, 32.9350615877, 21.0220396388, 25.0108575801, 21.0220396388, 32.9350615877, 21.0220396388, more...

decimal, periodic-4, non-monotonic, +

a(n)=Z(gcd(n, 4))
gcd(a,b)=greatest common divisor
Z(n)=non trivial zeros of Zeta
n≥0
4 operations
Prime

Sequence ysqpr4zegt4nk

54.5981500331, 2.7182818285, 7.3890560989, 2.7182818285, 54.5981500331, 2.7182818285, 7.3890560989, 2.7182818285, 54.5981500331, 2.7182818285, 7.3890560989, 2.7182818285, 54.5981500331, 2.7182818285, 7.3890560989, 2.7182818285, 54.5981500331, 2.7182818285, 7.3890560989, 2.7182818285, 54.5981500331, 2.7182818285, 7.3890560989, 2.7182818285, 54.5981500331, 2.7182818285, 7.3890560989, 2.7182818285, 54.5981500331, 2.7182818285, 7.3890560989, 2.7182818285, 54.5981500331, 2.7182818285, 7.3890560989, 2.7182818285, 54.5981500331, 2.7182818285, 7.3890560989, 2.7182818285, 54.5981500331, 2.7182818285, 7.3890560989, 2.7182818285, 54.5981500331, 2.7182818285, 7.3890560989, 2.7182818285, 54.5981500331, 2.7182818285, more...

decimal, periodic-4, non-monotonic, +

a(n)=exp(gcd(n, 4))
gcd(a,b)=greatest common divisor
n≥0
4 operations
Power

Sequence sgnoqkfgznkq

-225.9508464542, -0.1425465431, -3.3805150062, -0.1425465431, -225.9508464542, -0.1425465431, -3.3805150062, -0.1425465431, -225.9508464542, -0.1425465431, -3.3805150062, -0.1425465431, -225.9508464542, -0.1425465431, -3.3805150062, -0.1425465431, -225.9508464542, -0.1425465431, -3.3805150062, -0.1425465431, -225.9508464542, -0.1425465431, -3.3805150062, -0.1425465431, -225.9508464542, -0.1425465431, -3.3805150062, -0.1425465431, -225.9508464542, -0.1425465431, -3.3805150062, -0.1425465431, -225.9508464542, -0.1425465431, -3.3805150062, -0.1425465431, -225.9508464542, -0.1425465431, -3.3805150062, -0.1425465431, -225.9508464542, -0.1425465431, -3.3805150062, -0.1425465431, -225.9508464542, -0.1425465431, -3.3805150062, -0.1425465431, -225.9508464542, -0.1425465431, more...

decimal, periodic-4, non-monotonic, -

a(n)=tan(p(gcd(n, 4)))
gcd(a,b)=greatest common divisor
p(n)=nth prime
n≥0
5 operations
Prime

Sequence pxnqpn2g1p4sk

-54.5981500331, -2.7182818285, -7.3890560989, -2.7182818285, -54.5981500331, -2.7182818285, -7.3890560989, -2.7182818285, -54.5981500331, -2.7182818285, -7.3890560989, -2.7182818285, -54.5981500331, -2.7182818285, -7.3890560989, -2.7182818285, -54.5981500331, -2.7182818285, -7.3890560989, -2.7182818285, -54.5981500331, -2.7182818285, -7.3890560989, -2.7182818285, -54.5981500331, -2.7182818285, -7.3890560989, -2.7182818285, -54.5981500331, -2.7182818285, -7.3890560989, -2.7182818285, -54.5981500331, -2.7182818285, -7.3890560989, -2.7182818285, -54.5981500331, -2.7182818285, -7.3890560989, -2.7182818285, -54.5981500331, -2.7182818285, -7.3890560989, -2.7182818285, -54.5981500331, -2.7182818285, -7.3890560989, -2.7182818285, -54.5981500331, -2.7182818285, more...

decimal, periodic-4, non-monotonic, -

a(n)=-exp(gcd(n, 4))
gcd(a,b)=greatest common divisor
n≥0
5 operations
Power

Sequence oufqebu52yunh

-32.9350615877, -21.0220396388, -25.0108575801, -21.0220396388, -32.9350615877, -21.0220396388, -25.0108575801, -21.0220396388, -32.9350615877, -21.0220396388, -25.0108575801, -21.0220396388, -32.9350615877, -21.0220396388, -25.0108575801, -21.0220396388, -32.9350615877, -21.0220396388, -25.0108575801, -21.0220396388, -32.9350615877, -21.0220396388, -25.0108575801, -21.0220396388, -32.9350615877, -21.0220396388, -25.0108575801, -21.0220396388, -32.9350615877, -21.0220396388, -25.0108575801, -21.0220396388, -32.9350615877, -21.0220396388, -25.0108575801, -21.0220396388, -32.9350615877, -21.0220396388, -25.0108575801, -21.0220396388, -32.9350615877, -21.0220396388, -25.0108575801, -21.0220396388, -32.9350615877, -21.0220396388, -25.0108575801, -21.0220396388, -32.9350615877, -21.0220396388, more...

decimal, periodic-4, non-monotonic, -

a(n)=-Z(gcd(n, 4))
gcd(a,b)=greatest common divisor
Z(n)=non trivial zeros of Zeta
n≥0
5 operations
Prime

Sequence dxtypkccc3drh

-24, -1, -2, -1, -24, -1, -2, -1, -24, -1, -2, -1, -24, -1, -2, -1, -24, -1, -2, -1, -24, -1, -2, -1, -24, -1, -2, -1, -24, -1, -2, -1, -24, -1, -2, -1, -24, -1, -2, -1, -24, -1, -2, -1, -24, -1, -2, -1, -24, -1, more...

integer, periodic-4, non-monotonic, -

a(n)=-gcd(n, 4)!
gcd(a,b)=greatest common divisor
n≥0
5 operations
Combinatoric

Sequence 0h1kcfwuz4w4c

-10, -9, -8, -7, -10, -9, -8, -7, -10, -9, -8, -7, -10, -9, -8, -7, -10, -9, -8, -7, -10, -9, -8, -7, -10, -9, -8, -7, -10, -9, -8, -7, -10, -9, -8, -7, -10, -9, -8, -7, -10, -9, -8, -7, -10, -9, -8, -7, -10, -9, more...

integer, periodic-4, non-monotonic, -

a(n)=n%4-10
n≥0
5 operations
Divisibility

Sequence hwhht1ovyvswf

-9, -8, -7, -6, -9, -8, -7, -6, -9, -8, -7, -6, -9, -8, -7, -6, -9, -8, -7, -6, -9, -8, -7, -6, -9, -8, -7, -6, -9, -8, -7, -6, -9, -8, -7, -6, -9, -8, -7, -6, -9, -8, -7, -6, -9, -8, -7, -6, -9, -8, more...

integer, periodic-4, non-monotonic, -

a(n)=n%4-9
n≥0
5 operations
Divisibility

Sequence k5k4dbashrmdj

-8, -7, -6, -5, -8, -7, -6, -5, -8, -7, -6, -5, -8, -7, -6, -5, -8, -7, -6, -5, -8, -7, -6, -5, -8, -7, -6, -5, -8, -7, -6, -5, -8, -7, -6, -5, -8, -7, -6, -5, -8, -7, -6, -5, -8, -7, -6, -5, -8, -7, more...

integer, periodic-4, non-monotonic, -

a(n)=n%4-8
n≥0
5 operations
Divisibility

Sequence feixkhat5czji

-7, -6, -5, -4, -7, -6, -5, -4, -7, -6, -5, -4, -7, -6, -5, -4, -7, -6, -5, -4, -7, -6, -5, -4, -7, -6, -5, -4, -7, -6, -5, -4, -7, -6, -5, -4, -7, -6, -5, -4, -7, -6, -5, -4, -7, -6, -5, -4, -7, -6, more...

integer, periodic-4, non-monotonic, -

a(n)=n%4-7
n≥0
5 operations
Divisibility

Sequence dgdd5sbqmsxki

-6, -9, -8, -9, -6, -9, -8, -9, -6, -9, -8, -9, -6, -9, -8, -9, -6, -9, -8, -9, -6, -9, -8, -9, -6, -9, -8, -9, -6, -9, -8, -9, -6, -9, -8, -9, -6, -9, -8, -9, -6, -9, -8, -9, -6, -9, -8, -9, -6, -9, more...

integer, periodic-4, non-monotonic, -

a(n)=gcd(n, 4)-10
gcd(a,b)=greatest common divisor
n≥0
5 operations
Divisibility

Sequence s4czrdgoigcvp

-6, -5, -4, -3, -6, -5, -4, -3, -6, -5, -4, -3, -6, -5, -4, -3, -6, -5, -4, -3, -6, -5, -4, -3, -6, -5, -4, -3, -6, -5, -4, -3, -6, -5, -4, -3, -6, -5, -4, -3, -6, -5, -4, -3, -6, -5, -4, -3, -6, -5, more...

integer, periodic-4, non-monotonic, -

a(n)=n%4-6
n≥0
5 operations
Divisibility

Sequence lhxt20txybkwb

-5, -8, -7, -8, -5, -8, -7, -8, -5, -8, -7, -8, -5, -8, -7, -8, -5, -8, -7, -8, -5, -8, -7, -8, -5, -8, -7, -8, -5, -8, -7, -8, -5, -8, -7, -8, -5, -8, -7, -8, -5, -8, -7, -8, -5, -8, -7, -8, -5, -8, more...

integer, periodic-4, non-monotonic, -

a(n)=gcd(n, 4)-9
gcd(a,b)=greatest common divisor
n≥0
5 operations
Divisibility

Sequence xuehtdoeiapyf

-5, -4, -3, -2, -5, -4, -3, -2, -5, -4, -3, -2, -5, -4, -3, -2, -5, -4, -3, -2, -5, -4, -3, -2, -5, -4, -3, -2, -5, -4, -3, -2, -5, -4, -3, -2, -5, -4, -3, -2, -5, -4, -3, -2, -5, -4, -3, -2, -5, -4, more...

integer, periodic-4, non-monotonic, -

a(n)=n%4-5
n≥0
5 operations
Divisibility

Sequence ekfnco2mxt5f

-4, -7, -6, -7, -4, -7, -6, -7, -4, -7, -6, -7, -4, -7, -6, -7, -4, -7, -6, -7, -4, -7, -6, -7, -4, -7, -6, -7, -4, -7, -6, -7, -4, -7, -6, -7, -4, -7, -6, -7, -4, -7, -6, -7, -4, -7, -6, -7, -4, -7, more...

integer, periodic-4, non-monotonic, -

a(n)=gcd(n, 4)-8
gcd(a,b)=greatest common divisor
n≥0
5 operations
Divisibility

Sequence x2nwks2ov4opk

-4, -3, -2, -1, -4, -3, -2, -1, -4, -3, -2, -1, -4, -3, -2, -1, -4, -3, -2, -1, -4, -3, -2, -1, -4, -3, -2, -1, -4, -3, -2, -1, -4, -3, -2, -1, -4, -3, -2, -1, -4, -3, -2, -1, -4, -3, -2, -1, -4, -3, more...

integer, periodic-4, non-monotonic, -

a(n)=n%4-4
n≥0
5 operations
Divisibility

Sequence hstf533qdcmuo

-3.3805150062, 1.5574077247, -2.1850398633, 1.5574077247, -3.3805150062, 1.5574077247, -2.1850398633, 1.5574077247, -3.3805150062, 1.5574077247, -2.1850398633, 1.5574077247, -3.3805150062, 1.5574077247, -2.1850398633, 1.5574077247, -3.3805150062, 1.5574077247, -2.1850398633, 1.5574077247, -3.3805150062, 1.5574077247, -2.1850398633, 1.5574077247, -3.3805150062, 1.5574077247, -2.1850398633, 1.5574077247, -3.3805150062, 1.5574077247, -2.1850398633, 1.5574077247, -3.3805150062, 1.5574077247, -2.1850398633, 1.5574077247, -3.3805150062, 1.5574077247, -2.1850398633, 1.5574077247, -3.3805150062, 1.5574077247, -2.1850398633, 1.5574077247, -3.3805150062, 1.5574077247, -2.1850398633, 1.5574077247, -3.3805150062, 1.5574077247, more...

decimal, periodic-4, non-monotonic, +-

a(n)=tan(P(gcd(n, 4)))
gcd(a,b)=greatest common divisor
P(n)=Partition numbers
n≥0
5 operations
Combinatoric

Sequence oxsk4znhjcdkn

-3.1415926536, -2.1415926536, -1.1415926536, -0.1415926536, -3.1415926536, -2.1415926536, -1.1415926536, -0.1415926536, -3.1415926536, -2.1415926536, -1.1415926536, -0.1415926536, -3.1415926536, -2.1415926536, -1.1415926536, -0.1415926536, -3.1415926536, -2.1415926536, -1.1415926536, -0.1415926536, -3.1415926536, -2.1415926536, -1.1415926536, -0.1415926536, -3.1415926536, -2.1415926536, -1.1415926536, -0.1415926536, -3.1415926536, -2.1415926536, -1.1415926536, -0.1415926536, -3.1415926536, -2.1415926536, -1.1415926536, -0.1415926536, -3.1415926536, -2.1415926536, -1.1415926536, -0.1415926536, -3.1415926536, -2.1415926536, -1.1415926536, -0.1415926536, -3.1415926536, -2.1415926536, -1.1415926536, -0.1415926536, -3.1415926536, -2.1415926536, more...

decimal, periodic-4, non-monotonic, -

a(n)=n%4-π
π=3.141...
n≥0
5 operations
Divisibility

Sequence baf0pxa4xgqmf

-3, -6, -5, -6, -3, -6, -5, -6, -3, -6, -5, -6, -3, -6, -5, -6, -3, -6, -5, -6, -3, -6, -5, -6, -3, -6, -5, -6, -3, -6, -5, -6, -3, -6, -5, -6, -3, -6, -5, -6, -3, -6, -5, -6, -3, -6, -5, -6, -3, -6, more...

integer, periodic-4, non-monotonic, -

a(n)=gcd(n, 4)-7
gcd(a,b)=greatest common divisor
n≥0
5 operations
Divisibility

Sequence zvvarr5oqntuh

-3, -2, -1, 0, -3, -2, -1, 0, -3, -2, -1, 0, -3, -2, -1, 0, -3, -2, -1, 0, -3, -2, -1, 0, -3, -2, -1, 0, -3, -2, -1, 0, -3, -2, -1, 0, -3, -2, -1, 0, -3, -2, -1, 0, -3, -2, -1, 0, -3, -2, more...

integer, periodic-4, non-monotonic, -

a(n)=n%4-3
n≥0
5 operations
Divisibility

Sequence 3yz1wd3jirxvm

-3, 0, -1, 0, -3, 0, -1, 0, -3, 0, -1, 0, -3, 0, -1, 0, -3, 0, -1, 0, -3, 0, -1, 0, -3, 0, -1, 0, -3, 0, -1, 0, -3, 0, -1, 0, -3, 0, -1, 0, -3, 0, -1, 0, -3, 0, -1, 0, -3, 0, more...

integer, periodic-4, non-monotonic, -

a(n)=1-gcd(n, 4)
gcd(a,b)=greatest common divisor
n≥0
5 operations
Divisibility

Sequence rg4i2jd0b51ch

-2.1850398633, 1.5574077247, 1.5574077247, 1.5574077247, -2.1850398633, 1.5574077247, 1.5574077247, 1.5574077247, -2.1850398633, 1.5574077247, 1.5574077247, 1.5574077247, -2.1850398633, 1.5574077247, 1.5574077247, 1.5574077247, -2.1850398633, 1.5574077247, 1.5574077247, 1.5574077247, -2.1850398633, 1.5574077247, 1.5574077247, 1.5574077247, -2.1850398633, 1.5574077247, 1.5574077247, 1.5574077247, -2.1850398633, 1.5574077247, 1.5574077247, 1.5574077247, -2.1850398633, 1.5574077247, 1.5574077247, 1.5574077247, -2.1850398633, 1.5574077247, 1.5574077247, 1.5574077247, -2.1850398633, 1.5574077247, 1.5574077247, 1.5574077247, -2.1850398633, 1.5574077247, 1.5574077247, 1.5574077247, -2.1850398633, 1.5574077247, more...

decimal, periodic-4, non-monotonic, +-

a(n)=tan(pt(gcd(n, 4)))
gcd(a,b)=greatest common divisor
pt(n)=Pascals triangle by rows
n≥0
5 operations
Combinatoric

Sequence kkyvlpzcetesc

-2.1850398633, 1.5574077247, 6.334119167, 1.5574077247, -2.1850398633, 1.5574077247, 6.334119167, 1.5574077247, -2.1850398633, 1.5574077247, 6.334119167, 1.5574077247, -2.1850398633, 1.5574077247, 6.334119167, 1.5574077247, -2.1850398633, 1.5574077247, 6.334119167, 1.5574077247, -2.1850398633, 1.5574077247, 6.334119167, 1.5574077247, -2.1850398633, 1.5574077247, 6.334119167, 1.5574077247, -2.1850398633, 1.5574077247, 6.334119167, 1.5574077247, -2.1850398633, 1.5574077247, 6.334119167, 1.5574077247, -2.1850398633, 1.5574077247, 6.334119167, 1.5574077247, -2.1850398633, 1.5574077247, 6.334119167, 1.5574077247, -2.1850398633, 1.5574077247, 6.334119167, 1.5574077247, -2.1850398633, 1.5574077247, more...

decimal, periodic-4, non-monotonic, +-

a(n)=tan(sqrt(gcd(n, 4)))
gcd(a,b)=greatest common divisor
n≥0
5 operations
Trigonometric

Sequence js01vysgcy5bn

-2.1348966977, 1.5574077247, -2.1850398633, 1.5574077247, -2.1348966977, 1.5574077247, -2.1850398633, 1.5574077247, -2.1348966977, 1.5574077247, -2.1850398633, 1.5574077247, -2.1348966977, 1.5574077247, -2.1850398633, 1.5574077247, -2.1348966977, 1.5574077247, -2.1850398633, 1.5574077247, -2.1348966977, 1.5574077247, -2.1850398633, 1.5574077247, -2.1348966977, 1.5574077247, -2.1850398633, 1.5574077247, -2.1348966977, 1.5574077247, -2.1850398633, 1.5574077247, -2.1348966977, 1.5574077247, -2.1850398633, 1.5574077247, -2.1348966977, 1.5574077247, -2.1850398633, 1.5574077247, -2.1348966977, 1.5574077247, -2.1850398633, 1.5574077247, -2.1348966977, 1.5574077247, -2.1850398633, 1.5574077247, -2.1348966977, 1.5574077247, more...

decimal, periodic-4, non-monotonic, +-

a(n)=tan(gcd(n, 4)!)
gcd(a,b)=greatest common divisor
n≥0
5 operations
Combinatoric

Sequence 40xoqrpxbcihg

-2, -5, -4, -5, -2, -5, -4, -5, -2, -5, -4, -5, -2, -5, -4, -5, -2, -5, -4, -5, -2, -5, -4, -5, -2, -5, -4, -5, -2, -5, -4, -5, -2, -5, -4, -5, -2, -5, -4, -5, -2, -5, -4, -5, -2, -5, -4, -5, -2, -5, more...

integer, periodic-4, non-monotonic, -

a(n)=gcd(n, 4)-6
gcd(a,b)=greatest common divisor
n≥0
5 operations
Divisibility

Sequence cqwf3sxq1zy2i

-2, -1, -1.4142135624, -1, -2, -1, -1.4142135624, -1, -2, -1, -1.4142135624, -1, -2, -1, -1.4142135624, -1, -2, -1, -1.4142135624, -1, -2, -1, -1.4142135624, -1, -2, -1, -1.4142135624, -1, -2, -1, -1.4142135624, -1, -2, -1, -1.4142135624, -1, -2, -1, -1.4142135624, -1, -2, -1, -1.4142135624, -1, -2, -1, -1.4142135624, -1, -2, -1, more...

decimal, periodic-4, non-monotonic, -

a(n)=-sqrt(gcd(n, 4))
gcd(a,b)=greatest common divisor
n≥0
5 operations
Power

Sequence 2gzlj3qqgeq3b

-2, -1, 0, 1, -2, -1, 0, 1, -2, -1, 0, 1, -2, -1, 0, 1, -2, -1, 0, 1, -2, -1, 0, 1, -2, -1, 0, 1, -2, -1, 0, 1, -2, -1, 0, 1, -2, -1, 0, 1, -2, -1, 0, 1, -2, -1, 0, 1, -2, -1, more...

integer, periodic-4, non-monotonic, +-

a(n)=n%4-2
n≥0
5 operations
Divisibility
a(n)=n%(2^2)-2
n≥0
7 operations
Power

Sequence 0cn4khslwyu2o

-2, 1, 0, 1, -2, 1, 0, 1, -2, 1, 0, 1, -2, 1, 0, 1, -2, 1, 0, 1, -2, 1, 0, 1, -2, 1, 0, 1, -2, 1, 0, 1, -2, 1, 0, 1, -2, 1, 0, 1, -2, 1, 0, 1, -2, 1, 0, 1, -2, 1, more...

integer, periodic-4, non-monotonic, +-

a(n)=2-gcd(n, 4)
gcd(a,b)=greatest common divisor
n≥0
5 operations
Divisibility

Sequence 24gope5quoxdl

-1.3862943611, 0, -0.6931471806, 0, -1.3862943611, 0, -0.6931471806, 0, -1.3862943611, 0, -0.6931471806, 0, -1.3862943611, 0, -0.6931471806, 0, -1.3862943611, 0, -0.6931471806, 0, -1.3862943611, 0, -0.6931471806, 0, -1.3862943611, 0, -0.6931471806, 0, -1.3862943611, 0, -0.6931471806, 0, -1.3862943611, 0, -0.6931471806, 0, -1.3862943611, 0, -0.6931471806, 0, -1.3862943611, 0, -0.6931471806, 0, -1.3862943611, 0, -0.6931471806, 0, -1.3862943611, 0, more...

decimal, periodic-4, non-monotonic, -

a(n)=-log(gcd(n, 4))
gcd(a,b)=greatest common divisor
n≥0
5 operations
Power

Sequence z14wuf05itrub

-1.1578212823, -1.5574077247, 2.1850398633, -1.5574077247, -1.1578212823, -1.5574077247, 2.1850398633, -1.5574077247, -1.1578212823, -1.5574077247, 2.1850398633, -1.5574077247, -1.1578212823, -1.5574077247, 2.1850398633, -1.5574077247, -1.1578212823, -1.5574077247, 2.1850398633, -1.5574077247, -1.1578212823, -1.5574077247, 2.1850398633, -1.5574077247, -1.1578212823, -1.5574077247, 2.1850398633, -1.5574077247, -1.1578212823, -1.5574077247, 2.1850398633, -1.5574077247, -1.1578212823, -1.5574077247, 2.1850398633, -1.5574077247, -1.1578212823, -1.5574077247, 2.1850398633, -1.5574077247, -1.1578212823, -1.5574077247, 2.1850398633, -1.5574077247, -1.1578212823, -1.5574077247, 2.1850398633, -1.5574077247, -1.1578212823, -1.5574077247, more...

decimal, periodic-4, non-monotonic, +-

a(n)=tan(-gcd(n, 4))
gcd(a,b)=greatest common divisor
n≥0
5 operations
Trigonometric

Sequence edycckrgwe3i

-1.017343062, -1.2020569032, -1.0823232337, -1.2020569032, -1.017343062, -1.2020569032, -1.0823232337, -1.2020569032, -1.017343062, -1.2020569032, -1.0823232337, -1.2020569032, -1.017343062, -1.2020569032, -1.0823232337, -1.2020569032, -1.017343062, -1.2020569032, -1.0823232337, -1.2020569032, -1.017343062, -1.2020569032, -1.0823232337, -1.2020569032, -1.017343062, -1.2020569032, -1.0823232337, -1.2020569032, -1.017343062, -1.2020569032, -1.0823232337, -1.2020569032, -1.017343062, -1.2020569032, -1.0823232337, -1.2020569032, -1.017343062, -1.2020569032, -1.0823232337, -1.2020569032, -1.017343062, -1.2020569032, -1.0823232337, -1.2020569032, -1.017343062, -1.2020569032, -1.0823232337, -1.2020569032, -1.017343062, -1.2020569032, more...

decimal, periodic-4, non-monotonic, -

a(n)=-ζ(gcd(n, 4))
gcd(a,b)=greatest common divisor
ζ(n)=Riemann Zeta
n≥0
5 operations
Prime

Sequence xa3pdvfhaql4j

-1, -4, -3, -4, -1, -4, -3, -4, -1, -4, -3, -4, -1, -4, -3, -4, -1, -4, -3, -4, -1, -4, -3, -4, -1, -4, -3, -4, -1, -4, -3, -4, -1, -4, -3, -4, -1, -4, -3, -4, -1, -4, -3, -4, -1, -4, -3, -4, -1, -4, more...

integer, periodic-4, non-monotonic, -

a(n)=gcd(n, 4)-5
gcd(a,b)=greatest common divisor
n≥0
5 operations
Divisibility

Sequence 4fn0topr5o5ig

-1, -1, -2, -6, -1, -1, -2, -6, -1, -1, -2, -6, -1, -1, -2, -6, -1, -1, -2, -6, -1, -1, -2, -6, -1, -1, -2, -6, -1, -1, -2, -6, -1, -1, -2, -6, -1, -1, -2, -6, -1, -1, -2, -6, -1, -1, -2, -6, -1, -1, more...

integer, periodic-4, non-monotonic, -

a(n)=-(n%4)!
n≥0
5 operations
Combinatoric

Sequence qt1qbnehnidnk

-1, 0, 0, 0, -1, 0, 0, 0, -1, 0, 0, 0, -1, 0, 0, 0, -1, 0, 0, 0, -1, 0, 0, 0, -1, 0, 0, 0, -1, 0, 0, 0, -1, 0, 0, 0, -1, 0, 0, 0, -1, 0, 0, 0, -1, 0, 0, 0, -1, 0, more...

integer, periodic-4, non-monotonic, -

a(n)=floor(sin(gcd(n, 4)))
gcd(a,b)=greatest common divisor
n≥0
5 operations
Trigonometric

Sequence c2wchihbtwtlg

-1, 0, 1, 2, -1, 0, 1, 2, -1, 0, 1, 2, -1, 0, 1, 2, -1, 0, 1, 2, -1, 0, 1, 2, -1, 0, 1, 2, -1, 0, 1, 2, -1, 0, 1, 2, -1, 0, 1, 2, -1, 0, 1, 2, -1, 0, 1, 2, -1, 0, more...

integer, periodic-4, non-monotonic, +-

a(n)=n%4-1
n≥0
5 operations
Divisibility
a(n)=n%(2^2)-1
n≥0
7 operations
Power

Sequence 0phny3gpx24z

-1, 1, 0, 1, -1, 1, 0, 1, -1, 1, 0, 1, -1, 1, 0, 1, -1, 1, 0, 1, -1, 1, 0, 1, -1, 1, 0, 1, -1, 1, 0, 1, -1, 1, 0, 1, -1, 1, 0, 1, -1, 1, 0, 1, -1, 1, 0, 1, -1, 1, more...

integer, periodic-4, non-monotonic, +-

a(n)=round(cos(gcd(n, 4)))
gcd(a,b)=greatest common divisor
n≥0
5 operations
Trigonometric

Sequence fmr0dzomcgero

-1, 1, 1, 1, -1, 1, 1, 1, -1, 1, 1, 1, -1, 1, 1, 1, -1, 1, 1, 1, -1, 1, 1, 1, -1, 1, 1, 1, -1, 1, 1, 1, -1, 1, 1, 1, -1, 1, 1, 1, -1, 1, 1, 1, -1, 1, 1, 1, -1, 1, more...

integer, periodic-4, non-monotonic, +-

a(n)=round(sin(gcd(n, 4)))
gcd(a,b)=greatest common divisor
n≥0
5 operations
Trigonometric

Sequence 5b1c0jato5jjd

-1, 2, 1, 2, -1, 2, 1, 2, -1, 2, 1, 2, -1, 2, 1, 2, -1, 2, 1, 2, -1, 2, 1, 2, -1, 2, 1, 2, -1, 2, 1, 2, -1, 2, 1, 2, -1, 2, 1, 2, -1, 2, 1, 2, -1, 2, 1, 2, -1, 2, more...

integer, periodic-4, non-monotonic, +-

a(n)=3-gcd(n, 4)
gcd(a,b)=greatest common divisor
n≥0
5 operations
Divisibility

Sequence engknfgrkwigi

-0.9999902066, 0.1411200081, -0.9589242747, 0.1411200081, -0.9999902066, 0.1411200081, -0.9589242747, 0.1411200081, -0.9999902066, 0.1411200081, -0.9589242747, 0.1411200081, -0.9999902066, 0.1411200081, -0.9589242747, 0.1411200081, -0.9999902066, 0.1411200081, -0.9589242747, 0.1411200081, -0.9999902066, 0.1411200081, -0.9589242747, 0.1411200081, -0.9999902066, 0.1411200081, -0.9589242747, 0.1411200081, -0.9999902066, 0.1411200081, -0.9589242747, 0.1411200081, -0.9999902066, 0.1411200081, -0.9589242747, 0.1411200081, -0.9999902066, 0.1411200081, -0.9589242747, 0.1411200081, -0.9999902066, 0.1411200081, -0.9589242747, 0.1411200081, -0.9999902066, 0.1411200081, -0.9589242747, 0.1411200081, -0.9999902066, 0.1411200081, more...

decimal, periodic-4, non-monotonic, +-

a(n)=sin(p(gcd(n, 4)))
gcd(a,b)=greatest common divisor
p(n)=nth prime
n≥0
5 operations
Prime

Sequence gexayq0ktj5rh

-0.9589242747, 0.8414709848, 0.9092974268, 0.8414709848, -0.9589242747, 0.8414709848, 0.9092974268, 0.8414709848, -0.9589242747, 0.8414709848, 0.9092974268, 0.8414709848, -0.9589242747, 0.8414709848, 0.9092974268, 0.8414709848, -0.9589242747, 0.8414709848, 0.9092974268, 0.8414709848, -0.9589242747, 0.8414709848, 0.9092974268, 0.8414709848, -0.9589242747, 0.8414709848, 0.9092974268, 0.8414709848, -0.9589242747, 0.8414709848, 0.9092974268, 0.8414709848, -0.9589242747, 0.8414709848, 0.9092974268, 0.8414709848, -0.9589242747, 0.8414709848, 0.9092974268, 0.8414709848, -0.9589242747, 0.8414709848, 0.9092974268, 0.8414709848, -0.9589242747, 0.8414709848, 0.9092974268, 0.8414709848, -0.9589242747, 0.8414709848, more...

decimal, periodic-4, non-monotonic, +-

a(n)=sin(P(gcd(n, 4)))
gcd(a,b)=greatest common divisor
P(n)=Partition numbers
n≥0
5 operations
Combinatoric

Sequence g1hp01bdf11ud

-0.9443838837, 1.1189396032, 1.2845059111, 1.1189396032, -0.9443838837, 1.1189396032, 1.2845059111, 1.1189396032, -0.9443838837, 1.1189396032, 1.2845059111, 1.1189396032, -0.9443838837, 1.1189396032, 1.2845059111, 1.1189396032, -0.9443838837, 1.1189396032, 1.2845059111, 1.1189396032, -0.9443838837, 1.1189396032, 1.2845059111, 1.1189396032, -0.9443838837, 1.1189396032, 1.2845059111, 1.1189396032, -0.9443838837, 1.1189396032, 1.2845059111, 1.1189396032, -0.9443838837, 1.1189396032, 1.2845059111, 1.1189396032, -0.9443838837, 1.1189396032, 1.2845059111, 1.1189396032, -0.9443838837, 1.1189396032, 1.2845059111, 1.1189396032, -0.9443838837, 1.1189396032, 1.2845059111, 1.1189396032, -0.9443838837, 1.1189396032, more...

decimal, periodic-4, non-monotonic, +-

a(n)=tan(sin(gcd(n, 4)))
gcd(a,b)=greatest common divisor
n≥0
5 operations
Trigonometric

Sequence u33lrjy2e5gqd

-0.9287679362, 0.4107812905, 0.8938549549, 0.4107812905, -0.9287679362, 0.4107812905, 0.8938549549, 0.4107812905, -0.9287679362, 0.4107812905, 0.8938549549, 0.4107812905, -0.9287679362, 0.4107812905, 0.8938549549, 0.4107812905, -0.9287679362, 0.4107812905, 0.8938549549, 0.4107812905, -0.9287679362, 0.4107812905, 0.8938549549, 0.4107812905, -0.9287679362, 0.4107812905, 0.8938549549, 0.4107812905, -0.9287679362, 0.4107812905, 0.8938549549, 0.4107812905, -0.9287679362, 0.4107812905, 0.8938549549, 0.4107812905, -0.9287679362, 0.4107812905, 0.8938549549, 0.4107812905, -0.9287679362, 0.4107812905, 0.8938549549, 0.4107812905, -0.9287679362, 0.4107812905, 0.8938549549, 0.4107812905, -0.9287679362, 0.4107812905, more...

decimal, periodic-4, non-monotonic, +-

a(n)=sin(exp(gcd(n, 4)))
gcd(a,b)=greatest common divisor
n≥0
5 operations
Trigonometric

Sequence zfs1dncj2hgbg

-0.905578362, 0.8414709848, 0.9092974268, 0.8414709848, -0.905578362, 0.8414709848, 0.9092974268, 0.8414709848, -0.905578362, 0.8414709848, 0.9092974268, 0.8414709848, -0.905578362, 0.8414709848, 0.9092974268, 0.8414709848, -0.905578362, 0.8414709848, 0.9092974268, 0.8414709848, -0.905578362, 0.8414709848, 0.9092974268, 0.8414709848, -0.905578362, 0.8414709848, 0.9092974268, 0.8414709848, -0.905578362, 0.8414709848, 0.9092974268, 0.8414709848, -0.905578362, 0.8414709848, 0.9092974268, 0.8414709848, -0.905578362, 0.8414709848, 0.9092974268, 0.8414709848, -0.905578362, 0.8414709848, 0.9092974268, 0.8414709848, -0.905578362, 0.8414709848, 0.9092974268, 0.8414709848, -0.905578362, 0.8414709848, more...

decimal, periodic-4, non-monotonic, +-

a(n)=sin(gcd(n, 4)!)
gcd(a,b)=greatest common divisor
n≥0
5 operations
Combinatoric

Sequence ukwrakbrpo0df

-0.8584073464, 2.1415926536, 1.1415926536, 2.1415926536, -0.8584073464, 2.1415926536, 1.1415926536, 2.1415926536, -0.8584073464, 2.1415926536, 1.1415926536, 2.1415926536, -0.8584073464, 2.1415926536, 1.1415926536, 2.1415926536, -0.8584073464, 2.1415926536, 1.1415926536, 2.1415926536, -0.8584073464, 2.1415926536, 1.1415926536, 2.1415926536, -0.8584073464, 2.1415926536, 1.1415926536, 2.1415926536, -0.8584073464, 2.1415926536, 1.1415926536, 2.1415926536, -0.8584073464, 2.1415926536, 1.1415926536, 2.1415926536, -0.8584073464, 2.1415926536, 1.1415926536, 2.1415926536, -0.8584073464, 2.1415926536, 1.1415926536, 2.1415926536, -0.8584073464, 2.1415926536, 1.1415926536, 2.1415926536, -0.8584073464, 2.1415926536, more...

decimal, periodic-4, non-monotonic, +-

a(n)=π-gcd(n, 4)
π=3.141...
gcd(a,b)=greatest common divisor
n≥0
5 operations
Divisibility

Sequence u2cjk2yigur0l

-0.7659697024, 0.5998406268, -0.4419588738, 0.5998406268, -0.7659697024, 0.5998406268, -0.4419588738, 0.5998406268, -0.7659697024, 0.5998406268, -0.4419588738, 0.5998406268, -0.7659697024, 0.5998406268, -0.4419588738, 0.5998406268, -0.7659697024, 0.5998406268, -0.4419588738, 0.5998406268, -0.7659697024, 0.5998406268, -0.4419588738, 0.5998406268, -0.7659697024, 0.5998406268, -0.4419588738, 0.5998406268, -0.7659697024, 0.5998406268, -0.4419588738, 0.5998406268, -0.7659697024, 0.5998406268, -0.4419588738, 0.5998406268, -0.7659697024, 0.5998406268, -0.4419588738, 0.5998406268, -0.7659697024, 0.5998406268, -0.4419588738, 0.5998406268, -0.7659697024, 0.5998406268, -0.4419588738, 0.5998406268, -0.7659697024, 0.5998406268, more...

decimal, periodic-4, non-monotonic, +-

a(n)=tan(cos(gcd(n, 4)))
gcd(a,b)=greatest common divisor
n≥0
5 operations
Trigonometric

Sequence uwdsiqusizynp

-0.6866002607, 0.7456241417, 0.7890723436, 0.7456241417, -0.6866002607, 0.7456241417, 0.7890723436, 0.7456241417, -0.6866002607, 0.7456241417, 0.7890723436, 0.7456241417, -0.6866002607, 0.7456241417, 0.7890723436, 0.7456241417, -0.6866002607, 0.7456241417, 0.7890723436, 0.7456241417, -0.6866002607, 0.7456241417, 0.7890723436, 0.7456241417, -0.6866002607, 0.7456241417, 0.7890723436, 0.7456241417, -0.6866002607, 0.7456241417, 0.7890723436, 0.7456241417, -0.6866002607, 0.7456241417, 0.7890723436, 0.7456241417, -0.6866002607, 0.7456241417, 0.7890723436, 0.7456241417, -0.6866002607, 0.7456241417, 0.7890723436, 0.7456241417, -0.6866002607, 0.7456241417, 0.7890723436, 0.7456241417, -0.6866002607, 0.7456241417, more...

decimal, periodic-4, non-monotonic, +-

a(n)=sin(sin(gcd(n, 4)))
gcd(a,b)=greatest common divisor
n≥0
5 operations
Trigonometric

Sequence ymi3lvaiy2tlb

-0.6080830096, 0.5143952585, -0.4042391539, 0.5143952585, -0.6080830096, 0.5143952585, -0.4042391539, 0.5143952585, -0.6080830096, 0.5143952585, -0.4042391539, 0.5143952585, -0.6080830096, 0.5143952585, -0.4042391539, 0.5143952585, -0.6080830096, 0.5143952585, -0.4042391539, 0.5143952585, -0.6080830096, 0.5143952585, -0.4042391539, 0.5143952585, -0.6080830096, 0.5143952585, -0.4042391539, 0.5143952585, -0.6080830096, 0.5143952585, -0.4042391539, 0.5143952585, -0.6080830096, 0.5143952585, -0.4042391539, 0.5143952585, -0.6080830096, 0.5143952585, -0.4042391539, 0.5143952585, -0.6080830096, 0.5143952585, -0.4042391539, 0.5143952585, -0.6080830096, 0.5143952585, -0.4042391539, 0.5143952585, -0.6080830096, 0.5143952585, more...

decimal, periodic-4, non-monotonic, +-

a(n)=sin(cos(gcd(n, 4)))
gcd(a,b)=greatest common divisor
n≥0
5 operations
Trigonometric

Sequence noutczvphaqcj

-0.4161468365, 0.5403023059, 0.1559436948, 0.5403023059, -0.4161468365, 0.5403023059, 0.1559436948, 0.5403023059, -0.4161468365, 0.5403023059, 0.1559436948, 0.5403023059, -0.4161468365, 0.5403023059, 0.1559436948, 0.5403023059, -0.4161468365, 0.5403023059, 0.1559436948, 0.5403023059, -0.4161468365, 0.5403023059, 0.1559436948, 0.5403023059, -0.4161468365, 0.5403023059, 0.1559436948, 0.5403023059, -0.4161468365, 0.5403023059, 0.1559436948, 0.5403023059, -0.4161468365, 0.5403023059, 0.1559436948, 0.5403023059, -0.4161468365, 0.5403023059, 0.1559436948, 0.5403023059, -0.4161468365, 0.5403023059, 0.1559436948, 0.5403023059, -0.4161468365, 0.5403023059, 0.1559436948, 0.5403023059, -0.4161468365, 0.5403023059, more...

decimal, periodic-4, non-monotonic, +-

a(n)=cos(sqrt(gcd(n, 4)))
gcd(a,b)=greatest common divisor
n≥0
5 operations
Trigonometric

Sequence dqynv04agvosn

-0.4161468365, 0.5403023059, 0.5403023059, 0.5403023059, -0.4161468365, 0.5403023059, 0.5403023059, 0.5403023059, -0.4161468365, 0.5403023059, 0.5403023059, 0.5403023059, -0.4161468365, 0.5403023059, 0.5403023059, 0.5403023059, -0.4161468365, 0.5403023059, 0.5403023059, 0.5403023059, -0.4161468365, 0.5403023059, 0.5403023059, 0.5403023059, -0.4161468365, 0.5403023059, 0.5403023059, 0.5403023059, -0.4161468365, 0.5403023059, 0.5403023059, 0.5403023059, -0.4161468365, 0.5403023059, 0.5403023059, 0.5403023059, -0.4161468365, 0.5403023059, 0.5403023059, 0.5403023059, -0.4161468365, 0.5403023059, 0.5403023059, 0.5403023059, -0.4161468365, 0.5403023059, 0.5403023059, 0.5403023059, -0.4161468365, 0.5403023059, more...

decimal, periodic-4, non-monotonic, +-

a(n)=cos(pt(gcd(n, 4)))
gcd(a,b)=greatest common divisor
pt(n)=Pascals triangle by rows
n≥0
5 operations
Combinatoric

Sequence agy5tftvobehi

-0.3706617334, -0.9117339148, 0.4483562418, -0.9117339148, -0.3706617334, -0.9117339148, 0.4483562418, -0.9117339148, -0.3706617334, -0.9117339148, 0.4483562418, -0.9117339148, -0.3706617334, -0.9117339148, 0.4483562418, -0.9117339148, -0.3706617334, -0.9117339148, 0.4483562418, -0.9117339148, -0.3706617334, -0.9117339148, 0.4483562418, -0.9117339148, -0.3706617334, -0.9117339148, 0.4483562418, -0.9117339148, -0.3706617334, -0.9117339148, 0.4483562418, -0.9117339148, -0.3706617334, -0.9117339148, 0.4483562418, -0.9117339148, -0.3706617334, -0.9117339148, 0.4483562418, -0.9117339148, -0.3706617334, -0.9117339148, 0.4483562418, -0.9117339148, -0.3706617334, -0.9117339148, 0.4483562418, -0.9117339148, -0.3706617334, -0.9117339148, more...

decimal, periodic-4, non-monotonic, +-

a(n)=cos(exp(gcd(n, 4)))
gcd(a,b)=greatest common divisor
n≥0
5 operations
Trigonometric

Sequence zok45w2mobjnc

0, -7, 1, -1, 0, -7, 1, -1, 0, -7, 1, -1, 0, -7, 1, -1, 0, -7, 1, -1, 0, -7, 1, -1, 0, -7, 1, -1, 0, -7, 1, -1, 0, -7, 1, -1, 0, -7, 1, -1, 0, -7, 1, -1, 0, -7, 1, -1, 0, -7, more...

integer, periodic-4, non-monotonic, +-

a(n)=floor(tan(8+a(n-1)))
a(0)=0
n≥0
5 operations
Trigonometric

Sequence qww2r13x5kvop

0, -7, 2, 1, 0, -7, 2, 1, 0, -7, 2, 1, 0, -7, 2, 1, 0, -7, 2, 1, 0, -7, 2, 1, 0, -7, 2, 1, 0, -7, 2, 1, 0, -7, 2, 1, 0, -7, 2, 1, 0, -7, 2, 1, 0, -7, 2, 1, 0, -7, more...

integer, periodic-4, non-monotonic, +-

a(n)=round(tan(8+a(n-1)))
a(0)=0
n≥0
5 operations
Trigonometric

Sequence e4vny0d32n25l

0, -6, -4, -2, 0, -6, -4, -2, 0, -6, -4, -2, 0, -6, -4, -2, 0, -6, -4, -2, 0, -6, -4, -2, 0, -6, -4, -2, 0, -6, -4, -2, 0, -6, -4, -2, 0, -6, -4, -2, 0, -6, -4, -2, 0, -6, -4, -2, 0, -6, more...

integer, periodic-4, non-monotonic, -

a(n)=(a(n-1)-6)%8
a(0)=0
n≥0
5 operations
Divisibility

Sequence 0rtxiehcfudip

0, -3, -7, -1, 0, -3, -7, -1, 0, -3, -7, -1, 0, -3, -7, -1, 0, -3, -7, -1, 0, -3, -7, -1, 0, -3, -7, -1, 0, -3, -7, -1, 0, -3, -7, -1, 0, -3, -7, -1, 0, -3, -7, -1, 0, -3, -7, -1, 0, -3, more...

integer, periodic-4, non-monotonic, -

a(n)=round(tan(5-a(n-1)))
a(0)=0
n≥0
5 operations
Trigonometric

Sequence 3dgjczunc30hd

0, -3, -2, -3, 0, -3, -2, -3, 0, -3, -2, -3, 0, -3, -2, -3, 0, -3, -2, -3, 0, -3, -2, -3, 0, -3, -2, -3, 0, -3, -2, -3, 0, -3, -2, -3, 0, -3, -2, -3, 0, -3, -2, -3, 0, -3, -2, -3, 0, -3, more...

integer, periodic-4, non-monotonic, -

a(n)=gcd(n, 4)-4
gcd(a,b)=greatest common divisor
n≥0
5 operations
Divisibility

Sequence enm1dj30ikhul

0, -3, -2, -1, 0, -3, -2, -1, 0, -3, -2, -1, 0, -3, -2, -1, 0, -3, -2, -1, 0, -3, -2, -1, 0, -3, -2, -1, 0, -3, -2, -1, 0, -3, -2, -1, 0, -3, -2, -1, 0, -3, -2, -1, 0, -3, -2, -1, 0, -3, more...

integer, periodic-4, non-monotonic, -

a(n)=(a(n-1)-3)%4
a(0)=0
n≥0
5 operations
Divisibility

Sequence rhyrzaztaakze

0, -2.1850398633, 1.1578212823, 1.5574077247, 0, -2.1850398633, 1.1578212823, 1.5574077247, 0, -2.1850398633, 1.1578212823, 1.5574077247, 0, -2.1850398633, 1.1578212823, 1.5574077247, 0, -2.1850398633, 1.1578212823, 1.5574077247, 0, -2.1850398633, 1.1578212823, 1.5574077247, 0, -2.1850398633, 1.1578212823, 1.5574077247, 0, -2.1850398633, 1.1578212823, 1.5574077247, 0, -2.1850398633, 1.1578212823, 1.5574077247, 0, -2.1850398633, 1.1578212823, 1.5574077247, 0, -2.1850398633, 1.1578212823, 1.5574077247, 0, -2.1850398633, 1.1578212823, 1.5574077247, 0, -2.1850398633, more...

decimal, periodic-4, non-monotonic, +-

a(n)=tan(round(2-a(n-1)))
a(0)=0
n≥0
5 operations
Trigonometric

Sequence 4dq3ljrthoafl

0, -2, -4, -6, 0, -2, -4, -6, 0, -2, -4, -6, 0, -2, -4, -6, 0, -2, -4, -6, 0, -2, -4, -6, 0, -2, -4, -6, 0, -2, -4, -6, 0, -2, -4, -6, 0, -2, -4, -6, 0, -2, -4, -6, 0, -2, -4, -6, 0, -2, more...

integer, periodic-4, non-monotonic, -

a(n)=(a(n-1)-2)%8
a(0)=0
n≥0
5 operations
Divisibility

Sequence nrifz1rayjtlk

0, -2, 1, 2, 0, -2, 1, 2, 0, -2, 1, 2, 0, -2, 1, 2, 0, -2, 1, 2, 0, -2, 1, 2, 0, -2, 1, 2, 0, -2, 1, 2, 0, -2, 1, 2, 0, -2, 1, 2, 0, -2, 1, 2, 0, -2, 1, 2, 0, -2, more...

integer, periodic-4, non-monotonic, +-

a(n)=round(tan(2-a(n-1)))
a(0)=0
n≥0
5 operations
Trigonometric

Sequence r5wk3pukktzgi

0, -1.5574077247, 2.1850398633, 0.1425465431, 0, -1.5574077247, 2.1850398633, 0.1425465431, 0, -1.5574077247, 2.1850398633, 0.1425465431, 0, -1.5574077247, 2.1850398633, 0.1425465431, 0, -1.5574077247, 2.1850398633, 0.1425465431, 0, -1.5574077247, 2.1850398633, 0.1425465431, 0, -1.5574077247, 2.1850398633, 0.1425465431, 0, -1.5574077247, 2.1850398633, 0.1425465431, 0, -1.5574077247, 2.1850398633, 0.1425465431, 0, -1.5574077247, 2.1850398633, 0.1425465431, 0, -1.5574077247, 2.1850398633, 0.1425465431, 0, -1.5574077247, 2.1850398633, 0.1425465431, 0, -1.5574077247, more...

decimal, periodic-4, non-monotonic, +-

a(n)=tan(-n%4)
n≥0
5 operations
Trigonometric

Sequence qkdkyq0dnlson

0, -1, -7, -2, 0, -1, -7, -2, 0, -1, -7, -2, 0, -1, -7, -2, 0, -1, -7, -2, 0, -1, -7, -2, 0, -1, -7, -2, 0, -1, -7, -2, 0, -1, -7, -2, 0, -1, -7, -2, 0, -1, -7, -2, 0, -1, -7, -2, 0, -1, more...

integer, periodic-4, non-monotonic, -

a(n)=floor(tan(exp(cos(a(n-1)))))
a(0)=0
n≥0
5 operations
Trigonometric

Sequence hsjykxt1rbbmb

0, -1, -1, 0, 0, -1, -1, 0, 0, -1, -1, 0, 0, -1, -1, 0, 0, -1, -1, 0, 0, -1, -1, 0, 0, -1, -1, 0, 0, -1, -1, 0, 0, -1, -1, 0, 0, -1, -1, 0, 0, -1, -1, 0, 0, -1, -1, 0, 0, -1, more...

integer, periodic-4, non-monotonic, -

a(n)=(a(n-1)-n)%2
a(0)=0
n≥0
5 operations
Divisibility
a(n)=(a(n-1)^2-n)%2
a(0)=0
n≥0
7 operations
Power

Sequence dpnmukcpjav2j

0, -1, 3, -2, 0, -1, 3, -2, 0, -1, 3, -2, 0, -1, 3, -2, 0, -1, 3, -2, 0, -1, 3, -2, 0, -1, 3, -2, 0, -1, 3, -2, 0, -1, 3, -2, 0, -1, 3, -2, 0, -1, 3, -2, 0, -1, 3, -2, 0, -1, more...

integer, periodic-4, non-monotonic, +-

a(n)=round(tan(a(n-1)-4))
a(0)=0
n≥0
5 operations
Trigonometric

Sequence 1j4isl0cjyyeo

0, -1, 6, -2, 0, -1, 6, -2, 0, -1, 6, -2, 0, -1, 6, -2, 0, -1, 6, -2, 0, -1, 6, -2, 0, -1, 6, -2, 0, -1, 6, -2, 0, -1, 6, -2, 0, -1, 6, -2, 0, -1, 6, -2, 0, -1, 6, -2, 0, -1, more...

integer, periodic-4, non-monotonic, +-

a(n)=floor(tan(a(n-1)-7))
a(0)=0
n≥0
5 operations
Trigonometric

Sequence iwvkyovmrvjed

0, -1, 225, 4, 0, -1, 225, 4, 0, -1, 225, 4, 0, -1, 225, 4, 0, -1, 225, 4, 0, -1, 225, 4, 0, -1, 225, 4, 0, -1, 225, 4, 0, -1, 225, 4, 0, -1, 225, 4, 0, -1, 225, 4, 0, -1, 225, 4, 0, -1, more...

integer, periodic-4, non-monotonic, +-

a(n)=floor(tan(a(n-1)-10))
a(0)=0
n≥0
5 operations
Trigonometric

Sequence mreefttckawsf

0, -0.8414709848, -0.9092974268, -0.1411200081, 0, -0.8414709848, -0.9092974268, -0.1411200081, 0, -0.8414709848, -0.9092974268, -0.1411200081, 0, -0.8414709848, -0.9092974268, -0.1411200081, 0, -0.8414709848, -0.9092974268, -0.1411200081, 0, -0.8414709848, -0.9092974268, -0.1411200081, 0, -0.8414709848, -0.9092974268, -0.1411200081, 0, -0.8414709848, -0.9092974268, -0.1411200081, 0, -0.8414709848, -0.9092974268, -0.1411200081, 0, -0.8414709848, -0.9092974268, -0.1411200081, 0, -0.8414709848, -0.9092974268, -0.1411200081, 0, -0.8414709848, -0.9092974268, -0.1411200081, 0, -0.8414709848, more...

decimal, periodic-4, non-monotonic, -

a(n)=sin(-n%4)
n≥0
5 operations
Trigonometric

Sequence kvcuizzamdrho

0, 0, 0, 0.6931471806, 0, 0, 0, 0.6931471806, 0, 0, 0, 0.6931471806, 0, 0, 0, 0.6931471806, 0, 0, 0, 0.6931471806, 0, 0, 0, 0.6931471806, 0, 0, 0, 0.6931471806, 0, 0, 0, 0.6931471806, 0, 0, 0, 0.6931471806, 0, 0, 0, 0.6931471806, 0, 0, 0, 0.6931471806, 0, 0, 0, 0.6931471806, 0, 0, more...

decimal, periodic-4, non-monotonic, +

a(n)=log(ϕ(gcd(n, 4)))
gcd(a,b)=greatest common divisor
ϕ(n)=number of relative primes (Euler's totient)
n≥1
5 operations
Prime

Sequence mdyrk2bucqrro

0, 0, 0.6931471806, 1.7917594692, 0, 0, 0.6931471806, 1.7917594692, 0, 0, 0.6931471806, 1.7917594692, 0, 0, 0.6931471806, 1.7917594692, 0, 0, 0.6931471806, 1.7917594692, 0, 0, 0.6931471806, 1.7917594692, 0, 0, 0.6931471806, 1.7917594692, 0, 0, 0.6931471806, 1.7917594692, 0, 0, 0.6931471806, 1.7917594692, 0, 0, 0.6931471806, 1.7917594692, 0, 0, 0.6931471806, 1.7917594692, 0, 0, 0.6931471806, 1.7917594692, 0, 0, more...

decimal, periodic-4, non-monotonic, +

a(n)=log((n%4)!)
n≥0
5 operations
Combinatoric