Sequence Database

A database with 1693109 machine generated integer and decimal sequences.

Displaying result 0-99 of total 1612. [0] [1] [2] [3] [4] ... [16]

Sequence 33ryngsh1n0ff

0, 0, 2, 2, 0, 0, 2, 2, 0, 0, 2, 2, 0, 0, 2, 2, 0, 0, 2, 2, 0, 0, 2, 2, 0, 0, 2, 2, 0, 0, 2, 2, 0, 0, 2, 2, 0, 0, 2, 2, 0, 0, 2, 2, 0, 0, 2, 2, 0, 0, more...

integer, periodic-4, non-monotonic, +

a(n)=and(2, n)
and(a,b)=bitwise and
n≥0
3 operations
Bitwise

Sequence kckwtjx1wt34k

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)=and(3, n)
and(a,b)=bitwise and
n≥0
3 operations
Bitwise

Sequence o3lwmyqf1f4pn

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, +-, A087960

a(n)=∏[-a(n-1)]
a(0)=1
∏(a)=partial products of a
n≥0
3 operations
Recursive

Sequence rqw0haqeg4ojo

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

Sequence lrmevg44th0yo

60, 61, 62, 63, 60, 61, 62, 63, 60, 61, 62, 63, 60, 61, 62, 63, 60, 61, 62, 63, 60, 61, 62, 63, 60, 61, 62, 63, 60, 61, 62, 63, 60, 61, 62, 63, 60, 61, 62, 63, 60, 61, 62, 63, 60, 61, 62, 63, 60, 61, more...

integer, periodic-4, non-monotonic, +

a(n)=or(60, n)
or(a,b)=bitwise or
n≥0
3 operations
Bitwise

Sequence rjexrqpx2ytkg

61, 61, 63, 63, 61, 61, 63, 63, 61, 61, 63, 63, 61, 61, 63, 63, 61, 61, 63, 63, 61, 61, 63, 63, 61, 61, 63, 63, 61, 61, 63, 63, 61, 61, 63, 63, 61, 61, 63, 63, 61, 61, 63, 63, 61, 61, 63, 63, 61, 61, more...

integer, periodic-4, non-monotonic, +

a(n)=or(61, n)
or(a,b)=bitwise or
n≥0
3 operations
Bitwise

Sequence naoujlmm2zdc

-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)=or(n, -4)
or(a,b)=bitwise or
n≥0
4 operations
Bitwise

Sequence sbma3teybismn

-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 eq2hu3srf4lyg

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

integer, periodic-4, non-monotonic, -

a(n)=or(n, -3)
or(a,b)=bitwise or
n≥0
4 operations
Bitwise

Sequence 2vbbir4ppxvnf

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

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

a(n)=Δ[gcd(n, 4)]
gcd(a,b)=greatest common divisor
Δ(a)=differences of a
n≥0
4 operations
Divisibility

Sequence ogqtay21gblao

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

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

a(n)=Δ[∏[-a(n-1)]]
a(0)=1
∏(a)=partial products of a
Δ(a)=differences of a
n≥0
4 operations
Recursive

Sequence nd2akkdjx0gnm

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

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

a(n)=Δ[xor(3, n)]
xor(a,b)=bitwise exclusive or
Δ(a)=differences of a
n≥0
4 operations
Bitwise

Sequence 524hvxnrcs5zi

-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)=-∏[-a(n-1)]
a(0)=1
∏(a)=partial products of a
n≥0
4 operations
Recursive

Sequence 1k5bxwlx4lmgn

-0.7568024953079282, 0.8414709848078965, 0.9092974268256817, 0.8414709848078965, -0.7568024953079282, 0.8414709848078965, 0.9092974268256817, 0.8414709848078965, -0.7568024953079282, 0.8414709848078965, 0.9092974268256817, 0.8414709848078965, -0.7568024953079282, 0.8414709848078965, 0.9092974268256817, 0.8414709848078965, -0.7568024953079282, 0.8414709848078965, 0.9092974268256817, 0.8414709848078965, -0.7568024953079282, 0.8414709848078965, 0.9092974268256817, 0.8414709848078965, -0.7568024953079282, more...

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

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

Sequence tmy4hcxqsaagf

-0.6536436208636119, 0.5403023058681398, -0.4161468365471424, 0.5403023058681398, -0.6536436208636119, 0.5403023058681398, -0.4161468365471424, 0.5403023058681398, -0.6536436208636119, 0.5403023058681398, -0.4161468365471424, 0.5403023058681398, -0.6536436208636119, 0.5403023058681398, -0.4161468365471424, 0.5403023058681398, -0.6536436208636119, 0.5403023058681398, -0.4161468365471424, 0.5403023058681398, -0.6536436208636119, 0.5403023058681398, -0.4161468365471424, 0.5403023058681398, -0.6536436208636119, more...

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

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

Sequence b3vxod32jrtxp

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)=-and(3, n)
and(a,b)=bitwise and
n≥0
4 operations
Bitwise

Sequence gwfj0nyfidulk

0, 0, -2.185039863261519, -2.185039863261519, 0, 0, -2.185039863261519, -2.185039863261519, 0, 0, -2.185039863261519, -2.185039863261519, 0, 0, -2.185039863261519, -2.185039863261519, 0, 0, -2.185039863261519, -2.185039863261519, 0, 0, -2.185039863261519, -2.185039863261519, 0, more...

decimal, periodic-4, non-monotonic, -

a(n)=tan(and(2, n))
and(a,b)=bitwise and
n≥0
4 operations
Trigonometric

Sequence lfbhp5hzkrveb

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

integer, periodic-4, non-monotonic, -

a(n)=-and(2, n)
and(a,b)=bitwise and
n≥0
4 operations
Bitwise

Sequence gn1lohdcodxqn

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, 0, more...

integer, periodic-4, non-monotonic, +, A011765

a(n)=char[or(3, n)]
or(a,b)=bitwise or
char(a)=characteristic function of a (in range)
n≥0
4 operations
Bitwise

Sequence nbh5wyj4sgtlc

0, 0, 0, 4, 0, 0, 0, 4, 0, 0, 0, 4, 0, 0, 0, 4, 0, 0, 0, 4, 0, 0, 0, 4, 0, 0, 0, 4, 0, 0, 0, 4, 0, 0, 0, 4, 0, 0, 0, 4, 0, 0, 0, 4, 0, 0, 0, 4, 0, 0, more...

integer, periodic-4, non-monotonic, +

a(n)=Δ[or(3, n)]
or(a,b)=bitwise or
Δ(a)=differences of a
n≥0
4 operations
Bitwise

Sequence rvvclizzck1j

0, 0, 0.9092974268256817, 0.9092974268256817, 0, 0, 0.9092974268256817, 0.9092974268256817, 0, 0, 0.9092974268256817, 0.9092974268256817, 0, 0, 0.9092974268256817, 0.9092974268256817, 0, 0, 0.9092974268256817, 0.9092974268256817, 0, 0, 0.9092974268256817, 0.9092974268256817, 0, more...

decimal, periodic-4, non-monotonic, +

a(n)=sin(and(2, n))
and(a,b)=bitwise and
n≥0
4 operations
Trigonometric

Sequence ycjz0c35i0i1g

0, 0, 0.9640275800758169, 0.9640275800758169, 0, 0, 0.9640275800758169, 0.9640275800758169, 0, 0, 0.9640275800758169, 0.9640275800758169, 0, 0, 0.9640275800758169, 0.9640275800758169, 0, 0, 0.9640275800758169, 0.9640275800758169, 0, 0, 0.9640275800758169, 0.9640275800758169, 0, more...

decimal, periodic-4, non-monotonic, +

a(n)=tanh(and(2, n))
and(a,b)=bitwise and
n≥0
4 operations
Trigonometric

Sequence noqo41j44d4he

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, 0, 0, more...

integer, periodic-4, non-monotonic, +

a(n)=char[4+a(n-1)]
a(0)=2
char(a)=characteristic function of a (in range)
n≥0
4 operations
Recursive

Sequence ic2gopo5z4fum

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)=char[or(2, n)]
or(a,b)=bitwise or
char(a)=characteristic function of a (in range)
n≥0
4 operations
Bitwise

Sequence ryq1wv5w5bakn

0, 0, 1.1071487177940904, 1.1071487177940904, 0, 0, 1.1071487177940904, 1.1071487177940904, 0, 0, 1.1071487177940904, 1.1071487177940904, 0, 0, 1.1071487177940904, 1.1071487177940904, 0, 0, 1.1071487177940904, 1.1071487177940904, 0, 0, 1.1071487177940904, 1.1071487177940904, 0, more...

decimal, periodic-4, non-monotonic, +

a(n)=atan(and(2, n))
and(a,b)=bitwise and
n≥0
4 operations
Trigonometric

Sequence bm004rrz3lzcf

0, 0, 1.4142135623730951, 1.4142135623730951, 0, 0, 1.4142135623730951, 1.4142135623730951, 0, 0, 1.4142135623730951, 1.4142135623730951, 0, 0, 1.4142135623730951, 1.4142135623730951, 0, 0, 1.4142135623730951, 1.4142135623730951, 0, 0, 1.4142135623730951, 1.4142135623730951, 0, more...

decimal, periodic-4, non-monotonic, +

a(n)=sqrt(and(2, n))
and(a,b)=bitwise and
n≥0
4 operations
Power

Sequence 00akoj0vh401c

0, 0, 3.626860407847019, 3.626860407847019, 0, 0, 3.626860407847019, 3.626860407847019, 0, 0, 3.626860407847019, 3.626860407847019, 0, 0, 3.626860407847019, 3.626860407847019, 0, 0, 3.626860407847019, 3.626860407847019, 0, 0, 3.626860407847019, 3.626860407847019, 0, more...

decimal, periodic-4, non-monotonic, +

a(n)=sinh(and(2, n))
and(a,b)=bitwise and
n≥0
4 operations
Trigonometric

Sequence alvn03xntqhn

0, 0, 4, 0, 0, 0, 4, 0, 0, 0, 4, 0, 0, 0, 4, 0, 0, 0, 4, 0, 0, 0, 4, 0, 0, 0, 4, 0, 0, 0, 4, 0, 0, 0, 4, 0, 0, 0, 4, 0, 0, 0, 4, 0, 0, 0, 4, 0, 0, 0, more...

integer, periodic-4, non-monotonic, +

a(n)=and(4, n²)
and(a,b)=bitwise and
n≥0
4 operations
Power

Sequence rx3pietqrmjap

0, 0, 4, 4, 0, 0, 4, 4, 0, 0, 4, 4, 0, 0, 4, 4, 0, 0, 4, 4, 0, 0, 4, 4, 0, 0, 4, 4, 0, 0, 4, 4, 0, 0, 4, 4, 0, 0, 4, 4, 0, 0, 4, 4, 0, 0, 4, 4, 0, 0, more...

integer, periodic-4, non-monotonic, +

a(n)=and(2, n)²
and(a,b)=bitwise and
n≥0
4 operations
Power

Sequence jvbnm3l1vq2il

0, 0.7615941559557649, 0.9640275800758169, 0.9950547536867305, 0, 0.7615941559557649, 0.9640275800758169, 0.9950547536867305, 0, 0.7615941559557649, 0.9640275800758169, 0.9950547536867305, 0, 0.7615941559557649, 0.9640275800758169, 0.9950547536867305, 0, 0.7615941559557649, 0.9640275800758169, 0.9950547536867305, 0, 0.7615941559557649, 0.9640275800758169, 0.9950547536867305, 0, more...

decimal, periodic-4, non-monotonic, +

a(n)=tanh(and(3, n))
and(a,b)=bitwise and
n≥0
4 operations
Trigonometric

Sequence 1ocm4okl50jqb

0, 0.7853981633974483, 1.1071487177940904, 1.2490457723982544, 0, 0.7853981633974483, 1.1071487177940904, 1.2490457723982544, 0, 0.7853981633974483, 1.1071487177940904, 1.2490457723982544, 0, 0.7853981633974483, 1.1071487177940904, 1.2490457723982544, 0, 0.7853981633974483, 1.1071487177940904, 1.2490457723982544, 0, 0.7853981633974483, 1.1071487177940904, 1.2490457723982544, 0, more...

decimal, periodic-4, non-monotonic, +

a(n)=atan(and(3, n))
and(a,b)=bitwise and
n≥0
4 operations
Trigonometric

Sequence frm0uo5remwge

0, 0.8414709848078965, 0.9092974268256817, 0.1411200080598672, 0, 0.8414709848078965, 0.9092974268256817, 0.1411200080598672, 0, 0.8414709848078965, 0.9092974268256817, 0.1411200080598672, 0, 0.8414709848078965, 0.9092974268256817, 0.1411200080598672, 0, 0.8414709848078965, 0.9092974268256817, 0.1411200080598672, 0, 0.8414709848078965, 0.9092974268256817, 0.1411200080598672, 0, more...

decimal, periodic-4, non-monotonic, +

a(n)=sin(and(3, n))
and(a,b)=bitwise and
n≥0
4 operations
Trigonometric

Sequence rkot2bsooy2r

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, 1, more...

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

a(n)=xor(Δ[a(n-2)], a(n-1))
a(0)=0
a(1)=1
Δ(a)=differences of a
xor(a,b)=bitwise exclusive or
n≥0
4 operations
Recursive

Sequence pgbjf05ivk1qh

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, 0, 0, 1, more...

integer, periodic-4, non-monotonic, +

a(n)=char[4+a(n-1)]
a(0)=1
char(a)=characteristic function of a (in range)
n≥0
4 operations
Recursive

Sequence 5djhorxqci3co

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)=and(1, ∑[n])
∑(a)=partial sums of a
and(a,b)=bitwise and
n≥0
4 operations
Bitwise

Sequence w0vc4r4qj0cci

0, 1, 1.4142135623730951, 1.7320508075688772, 0, 1, 1.4142135623730951, 1.7320508075688772, 0, 1, 1.4142135623730951, 1.7320508075688772, 0, 1, 1.4142135623730951, 1.7320508075688772, 0, 1, 1.4142135623730951, 1.7320508075688772, 0, 1, 1.4142135623730951, 1.7320508075688772, 0, more...

decimal, periodic-4, non-monotonic, +

a(n)=sqrt(and(3, n))
and(a,b)=bitwise and
n≥0
4 operations
Power

Sequence ei1cz2qsvqokb

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

integer, periodic-4, non-monotonic, +, A070432

a(n)=and(5, n²)
and(a,b)=bitwise and
n≥0
4 operations
Power

Sequence wp0ji2fsrho5o

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 enfvx1xo1kv3i

0, 1, 4, 9, 0, 1, 4, 9, 0, 1, 4, 9, 0, 1, 4, 9, 0, 1, 4, 9, 0, 1, 4, 9, 0, 1, 4, 9, 0, 1, 4, 9, 0, 1, 4, 9, 0, 1, 4, 9, 0, 1, 4, 9, 0, 1, 4, 9, 0, 1, more...

integer, periodic-4, non-monotonic, +

a(n)=and(3, n)²
and(a,b)=bitwise and
n≥0
4 operations
Power

Sequence mxc0mlpuhyxyc

0, 1, 36, -2, 0, 1, 36, -2, 0, 1, 36, -2, 0, 1, 36, -2, 0, 1, 36, -2, 0, 1, 36, -2, 0, 1, 36, -2, 0, 1, 36, -2, 0, 1, 36, -2, 0, 1, 36, -2, 0, 1, 36, -2, 0, 1, 36, -2, 0, 1, more...

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

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

Sequence bfhewxlrwzpkk

0, 1.1752011936438014, 3.626860407847019, 10.017874927409903, 0, 1.1752011936438014, 3.626860407847019, 10.017874927409903, 0, 1.1752011936438014, 3.626860407847019, 10.017874927409903, 0, 1.1752011936438014, 3.626860407847019, 10.017874927409903, 0, 1.1752011936438014, 3.626860407847019, 10.017874927409903, 0, 1.1752011936438014, 3.626860407847019, 10.017874927409903, 0, more...

decimal, periodic-4, non-monotonic, +

a(n)=sinh(and(3, n))
and(a,b)=bitwise and
n≥0
4 operations
Trigonometric

Sequence 5gtyejdvh3grd

0, 1.5574077246549023, -2.185039863261519, -0.1425465430742778, 0, 1.5574077246549023, -2.185039863261519, -0.1425465430742778, 0, 1.5574077246549023, -2.185039863261519, -0.1425465430742778, 0, 1.5574077246549023, -2.185039863261519, -0.1425465430742778, 0, 1.5574077246549023, -2.185039863261519, -0.1425465430742778, 0, 1.5574077246549023, -2.185039863261519, -0.1425465430742778, 0, more...

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

a(n)=tan(and(3, n))
and(a,b)=bitwise and
n≥0
4 operations
Trigonometric

Sequence 1atts4wdr3kic

0, 1.5574077246549023, 1.1578212823495777, -0.1425465430742778, 0, 1.5574077246549023, 1.1578212823495777, -0.1425465430742778, 0, 1.5574077246549023, 1.1578212823495777, -0.1425465430742778, 0, 1.5574077246549023, 1.1578212823495777, -0.1425465430742778, 0, 1.5574077246549023, 1.1578212823495777, -0.1425465430742778, 0, 1.5574077246549023, 1.1578212823495777, -0.1425465430742778, 0, more...

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

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

Sequence 4ldoz545zmtvg

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

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

a(n)=xor(Δ[a(n-2)], a(n-1))
a(0)=0
a(1)=2
Δ(a)=differences of a
xor(a,b)=bitwise exclusive or
n≥0
4 operations
Recursive

Sequence yyq22d1bmpakd

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

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

a(n)=Δ[and(2, n)]
and(a,b)=bitwise and
Δ(a)=differences of a
n≥0
4 operations
Bitwise

Sequence nwxeljn2grwnj

0, 2, 2, 0, 0, 2, 2, 0, 0, 2, 2, 0, 0, 2, 2, 0, 0, 2, 2, 0, 0, 2, 2, 0, 0, 2, 2, 0, 0, 2, 2, 0, 0, 2, 2, 0, 0, 2, 2, 0, 0, 2, 2, 0, 0, 2, 2, 0, 0, 2, more...

integer, periodic-4, non-monotonic, +

a(n)=and(2, -n)
and(a,b)=bitwise and
n≥0
4 operations
Bitwise

Sequence pggtomel5zarc

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, +, A158459

a(n)=and(3, -n)
and(a,b)=bitwise and
n≥0
4 operations
Bitwise

Sequence 5syzff402izs

0, 3.141592653589793, 3.141592653589793, 0, 0, 3.141592653589793, 3.141592653589793, 0, 0, 3.141592653589793, 3.141592653589793, 0, 0, 3.141592653589793, 3.141592653589793, 0, 0, 3.141592653589793, 3.141592653589793, 0, 0, 3.141592653589793, 3.141592653589793, 0, 0, more...

decimal, periodic-4, non-monotonic, +

a(n)=acos(∏[-a(n-1)])
a(0)=1
∏(a)=partial products of a
n≥0
4 operations
Trigonometric

Sequence 4aj2dik3lbblp

0.244978663126864, 0.7853981633974483, 0.46364760900080615, 0.7853981633974483, 0.244978663126864, 0.7853981633974483, 0.46364760900080615, 0.7853981633974483, 0.244978663126864, 0.7853981633974483, 0.46364760900080615, 0.7853981633974483, 0.244978663126864, 0.7853981633974483, 0.46364760900080615, 0.7853981633974483, 0.244978663126864, 0.7853981633974483, 0.46364760900080615, 0.7853981633974483, 0.244978663126864, 0.7853981633974483, 0.46364760900080615, 0.7853981633974483, 0.244978663126864, more...

decimal, periodic-4, non-monotonic, +

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

Sequence 1y5hnnekwe1bl

0.6420926159343308, -0.6420926159343308, -0.6420926159343308, 0.6420926159343308, 0.6420926159343308, -0.6420926159343308, -0.6420926159343308, 0.6420926159343308, 0.6420926159343308, -0.6420926159343308, -0.6420926159343308, 0.6420926159343308, 0.6420926159343308, -0.6420926159343308, -0.6420926159343308, 0.6420926159343308, 0.6420926159343308, -0.6420926159343308, -0.6420926159343308, 0.6420926159343308, 0.6420926159343308, -0.6420926159343308, -0.6420926159343308, 0.6420926159343308, 0.6420926159343308, more...

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

a(n)=cot(∏[-a(n-1)])
a(0)=1
∏(a)=partial products of a
n≥0
4 operations
Trigonometric

Sequence yh52eoqayoeel

0.7615941559557649, -0.7615941559557649, -0.7615941559557649, 0.7615941559557649, 0.7615941559557649, -0.7615941559557649, -0.7615941559557649, 0.7615941559557649, 0.7615941559557649, -0.7615941559557649, -0.7615941559557649, 0.7615941559557649, 0.7615941559557649, -0.7615941559557649, -0.7615941559557649, 0.7615941559557649, 0.7615941559557649, -0.7615941559557649, -0.7615941559557649, 0.7615941559557649, 0.7615941559557649, -0.7615941559557649, -0.7615941559557649, 0.7615941559557649, 0.7615941559557649, more...

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

a(n)=tanh(∏[-a(n-1)])
a(0)=1
∏(a)=partial products of a
n≥0
4 operations
Trigonometric

Sequence qvowqmaxjwiok

0.7853981633974483, -0.7853981633974483, -0.7853981633974483, 0.7853981633974483, 0.7853981633974483, -0.7853981633974483, -0.7853981633974483, 0.7853981633974483, 0.7853981633974483, -0.7853981633974483, -0.7853981633974483, 0.7853981633974483, 0.7853981633974483, -0.7853981633974483, -0.7853981633974483, 0.7853981633974483, 0.7853981633974483, -0.7853981633974483, -0.7853981633974483, 0.7853981633974483, 0.7853981633974483, -0.7853981633974483, -0.7853981633974483, 0.7853981633974483, 0.7853981633974483, more...

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

a(n)=atan(∏[-a(n-1)])
a(0)=1
∏(a)=partial products of a
n≥0
4 operations
Trigonometric

Sequence 4yofrk3sthsjp

0.7853981633974483, 2.356194490192345, 2.356194490192345, 0.7853981633974483, 0.7853981633974483, 2.356194490192345, 2.356194490192345, 0.7853981633974483, 0.7853981633974483, 2.356194490192345, 2.356194490192345, 0.7853981633974483, 0.7853981633974483, 2.356194490192345, 2.356194490192345, 0.7853981633974483, 0.7853981633974483, 2.356194490192345, 2.356194490192345, 0.7853981633974483, 0.7853981633974483, 2.356194490192345, 2.356194490192345, 0.7853981633974483, 0.7853981633974483, more...

decimal, periodic-4, non-monotonic, +

a(n)=acot(∏[-a(n-1)])
a(0)=1
∏(a)=partial products of a
n≥0
4 operations
Trigonometric

Sequence tgkf2xo5foqhf

0.8414709848078965, -0.8414709848078965, -0.8414709848078965, 0.8414709848078965, 0.8414709848078965, -0.8414709848078965, -0.8414709848078965, 0.8414709848078965, 0.8414709848078965, -0.8414709848078965, -0.8414709848078965, 0.8414709848078965, 0.8414709848078965, -0.8414709848078965, -0.8414709848078965, 0.8414709848078965, 0.8414709848078965, -0.8414709848078965, -0.8414709848078965, 0.8414709848078965, 0.8414709848078965, -0.8414709848078965, -0.8414709848078965, 0.8414709848078965, 0.8414709848078965, more...

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

a(n)=sin(∏[-a(n-1)])
a(0)=1
∏(a)=partial products of a
n≥0
4 operations
Trigonometric

Sequence rvblu1pybobvh

0.8636911544506167, 0.6420926159343308, -0.45765755436028577, 0.6420926159343308, 0.8636911544506167, 0.6420926159343308, -0.45765755436028577, 0.6420926159343308, 0.8636911544506167, 0.6420926159343308, -0.45765755436028577, 0.6420926159343308, 0.8636911544506167, 0.6420926159343308, -0.45765755436028577, 0.6420926159343308, 0.8636911544506167, 0.6420926159343308, -0.45765755436028577, 0.6420926159343308, 0.8636911544506167, 0.6420926159343308, -0.45765755436028577, 0.6420926159343308, 0.8636911544506167, more...

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

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

Sequence f0ferurp4cgui

0.999329299739067, 0.7615941559557649, 0.9640275800758169, 0.7615941559557649, 0.999329299739067, 0.7615941559557649, 0.9640275800758169, 0.7615941559557649, 0.999329299739067, 0.7615941559557649, 0.9640275800758169, 0.7615941559557649, 0.999329299739067, 0.7615941559557649, 0.9640275800758169, 0.7615941559557649, 0.999329299739067, 0.7615941559557649, 0.9640275800758169, 0.7615941559557649, 0.999329299739067, 0.7615941559557649, 0.9640275800758169, 0.7615941559557649, 0.999329299739067, more...

decimal, periodic-4, non-monotonic, +

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

Sequence naogbs2dwke0e

1, -3, 1, 5, 1, -3, 1, 5, 1, -3, 1, 5, 1, -3, 1, 5, 1, -3, 1, 5, 1, -3, 1, 5, 1, -3, 1, 5, 1, -3, 1, 5, 1, -3, 1, 5, 1, -3, 1, 5, 1, -3, 1, 5, 1, -3, 1, 5, 1, -3, more...

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

a(n)=Δ[xor(2, n)]
xor(a,b)=bitwise exclusive or
Δ(a)=differences of a
n≥0
4 operations
Bitwise

Sequence 0yglmmck2uwmc

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 aykumnuimsrwb

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, 1, -2, more...

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

a(n)=xor(Δ[a(n-2)], a(n-1))
a(0)=1
a(1)=0
Δ(a)=differences of a
xor(a,b)=bitwise exclusive or
n≥0
4 operations
Recursive

Sequence my2idila3xjqp

1, -2, 7, 5, 1, -2, 7, 5, 1, -2, 7, 5, 1, -2, 7, 5, 1, -2, 7, 5, 1, -2, 7, 5, 1, -2, 7, 5, 1, -2, 7, 5, 1, -2, 7, 5, 1, -2, 7, 5, 1, -2, 7, 5, 1, -2, 7, 5, 1, -2, more...

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

a(n)=round(cot(exp(a(n-1))))
a(0)=1
n≥0
4 operations
Trigonometric

Sequence 53nbyttrpaoxk

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)=∏[∏[-a(n-1)]]
a(0)=1
∏(a)=partial products of a
n≥0
4 operations
Recursive

Sequence 0bckuvotbbo5k

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

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

a(n)=Δ[or(2, n)]
or(a,b)=bitwise or
Δ(a)=differences of a
n≥0
4 operations
Bitwise

Sequence hyhxyui1dpx0n

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 jpcytsrh2efob

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)=xor(Δ[a(n-2)], a(n-1))
a(0)=1
a(1)=2
Δ(a)=differences of a
xor(a,b)=bitwise exclusive or
n≥0
4 operations
Recursive

Sequence xbtkjoiloanfj

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

integer, periodic-4, non-monotonic, +-, A011632

a(n)=∑[∏[-a(n-1)]]
a(0)=1
∏(a)=partial products of a
∑(a)=partial sums of a
n≥0
4 operations
Recursive

Sequence z0r4vsmqx4q2h

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, +, A121262

a(n)=char[4*n]
char(a)=characteristic function of a (in range)
n≥0
4 operations
Arithmetic

Sequence tpo4ou3gyihgo

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)=a(n-1)!-a(n-2)
a(0)=1
a(1)=0
n≥0
4 operations
Combinatoric

Sequence wcexvhxd1kpdm

1, 0.5403023058681398, -0.4161468365471424, -0.9899924966004454, 1, 0.5403023058681398, -0.4161468365471424, -0.9899924966004454, 1, 0.5403023058681398, -0.4161468365471424, -0.9899924966004454, 1, 0.5403023058681398, -0.4161468365471424, -0.9899924966004454, 1, 0.5403023058681398, -0.4161468365471424, -0.9899924966004454, 1, 0.5403023058681398, -0.4161468365471424, -0.9899924966004454, 1, more...

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

a(n)=cos(and(3, n))
and(a,b)=bitwise and
n≥0
4 operations
Trigonometric

Sequence vgsnl0uqjwpog

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)=a(n-1)/Δ[a(n-2)]
a(0)=1
a(1)=2
Δ(a)=differences of a
n≥0
4 operations
Recursive

Sequence kil1razbcsemh

1, 1, -0.4161468365471424, -0.4161468365471424, 1, 1, -0.4161468365471424, -0.4161468365471424, 1, 1, -0.4161468365471424, -0.4161468365471424, 1, 1, -0.4161468365471424, -0.4161468365471424, 1, 1, -0.4161468365471424, -0.4161468365471424, 1, 1, -0.4161468365471424, -0.4161468365471424, 1, more...

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

a(n)=cos(and(2, n))
and(a,b)=bitwise and
n≥0
4 operations
Trigonometric

Sequence l4thxqplfoe2b

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

Sequence 0tp2mkbrgbz4c

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

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

a(n)=Δ[and(3, n)]
and(a,b)=bitwise and
Δ(a)=differences of a
n≥0
4 operations
Bitwise

Sequence 42rrqxs1waavk

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

integer, periodic-4, non-monotonic, +, A130658

a(n)=and(2, n)!
and(a,b)=bitwise and
n≥0
4 operations
Combinatoric

Sequence chro1kqktd3nn

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)=and(3, n)!
and(a,b)=bitwise and
n≥0
4 operations
Combinatoric

Sequence covkfg4k3mmgi

1, 1, 3.7621956910836314, 3.7621956910836314, 1, 1, 3.7621956910836314, 3.7621956910836314, 1, 1, 3.7621956910836314, 3.7621956910836314, 1, 1, 3.7621956910836314, 3.7621956910836314, 1, 1, 3.7621956910836314, 3.7621956910836314, 1, 1, 3.7621956910836314, 3.7621956910836314, 1, more...

decimal, periodic-4, non-monotonic, +

a(n)=cosh(and(2, n))
and(a,b)=bitwise and
n≥0
4 operations
Trigonometric

Sequence htbgy5wqbn3ac

1, 1, 7.38905609893065, 7.38905609893065, 1, 1, 7.38905609893065, 7.38905609893065, 1, 1, 7.38905609893065, 7.38905609893065, 1, 1, 7.38905609893065, 7.38905609893065, 1, 1, 7.38905609893065, 7.38905609893065, 1, 1, 7.38905609893065, 7.38905609893065, 1, more...

decimal, periodic-4, non-monotonic, +

a(n)=exp(and(2, n))
and(a,b)=bitwise and
n≥0
4 operations
Power

Sequence ndrj1hzm4lsfo

1, 1.543080634815244, 3.7621956910836314, 10.067661995777765, 1, 1.543080634815244, 3.7621956910836314, 10.067661995777765, 1, 1.543080634815244, 3.7621956910836314, 10.067661995777765, 1, 1.543080634815244, 3.7621956910836314, 10.067661995777765, 1, 1.543080634815244, 3.7621956910836314, 10.067661995777765, 1, 1.543080634815244, 3.7621956910836314, 10.067661995777765, 1, more...

decimal, periodic-4, non-monotonic, +

a(n)=cosh(and(3, n))
and(a,b)=bitwise and
n≥0
4 operations
Trigonometric

Sequence ga0dx0fibjjfe

1, 1.543080634815244, 2155615773557598, 3.7621956910836314, 1, 1.543080634815244, 2155615773557598, 3.7621956910836314, 1, 1.543080634815244, 2155615773557598, 3.7621956910836314, 1, 1.543080634815244, 2155615773557598, 3.7621956910836314, 1, 1.543080634815244, 2155615773557598, 3.7621956910836314, 1, 1.543080634815244, 2155615773557598, 3.7621956910836314, 1, more...

decimal, periodic-4, non-monotonic, +

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

Sequence msq4cegwt1csj

1, 1.5574077246549023, 826.7926316054052, 0, 1, 1.5574077246549023, 826.7926316054052, 0, 1, 1.5574077246549023, 826.7926316054052, 0, 1, 1.5574077246549023, 826.7926316054052, 0, 1, 1.5574077246549023, 826.7926316054052, 0, 1, 1.5574077246549023, 826.7926316054052, 0, 1, more...

decimal, periodic-4, non-monotonic, +

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

Sequence z1i3mq32n0yjc

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
Recursive

Sequence fbkv3dekez5tb

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, more...

decimal, periodic-4, non-monotonic, +

a(n)=root(-a(n-1), a(n-2))
a(0)=1
a(1)=2
root(n,a)=the n-th root of a
n≥0
4 operations
Recursive

Sequence u4m4ae2zhk55n

1, 2, 5, 15, 1, 2, 5, 15, 1, 2, 5, 15, 1, 2, 5, 15, 1, 2, 5, 15, 1, 2, 5, 15, 1, 2, 5, 15, 1, 2, 5, 15, 1, 2, 5, 15, 1, 2, 5, 15, 1, 2, 5, 15, 1, 2, 5, 15, 1, 2, more...

integer, periodic-4, non-monotonic, +

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

Sequence tfitlk3orrhlo

1, 2.718281828459045, 7.38905609893065, 20.085536923187668, 1, 2.718281828459045, 7.38905609893065, 20.085536923187668, 1, 2.718281828459045, 7.38905609893065, 20.085536923187668, 1, 2.718281828459045, 7.38905609893065, 20.085536923187668, 1, 2.718281828459045, 7.38905609893065, 20.085536923187668, 1, 2.718281828459045, 7.38905609893065, 20.085536923187668, 1, more...

decimal, periodic-4, non-monotonic, +

a(n)=exp(and(3, n))
and(a,b)=bitwise and
n≥0
4 operations
Power

Sequence 1i2n2hufo4vgb

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 yxgoioumqsnqe

1, 4.746501045726147, 3.1829908776930185, 0.8671471936567641, 1, 4.746501045726147, 3.1829908776930185, 0.8671471936567641, 1, 4.746501045726147, 3.1829908776930185, 0.8671471936567641, 1, 4.746501045726147, 3.1829908776930185, 0.8671471936567641, 1, 4.746501045726147, 3.1829908776930185, 0.8671471936567641, 1, 4.746501045726147, 3.1829908776930185, 0.8671471936567641, 1, more...

decimal, periodic-4, non-monotonic, +

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

Sequence w5evt1dfp3cdk

1, 36, -2, 0, 1, 36, -2, 0, 1, 36, -2, 0, 1, 36, -2, 0, 1, 36, -2, 0, 1, 36, -2, 0, 1, 36, -2, 0, 1, 36, -2, 0, 1, 36, -2, 0, 1, 36, -2, 0, 1, 36, -2, 0, 1, 36, -2, 0, 1, 36, more...

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

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

Sequence cbbxu3ni12psh

1.1578212823495777, 1.5574077246549023, -2.185039863261519, 1.5574077246549023, 1.1578212823495777, 1.5574077246549023, -2.185039863261519, 1.5574077246549023, 1.1578212823495777, 1.5574077246549023, -2.185039863261519, 1.5574077246549023, 1.1578212823495777, 1.5574077246549023, -2.185039863261519, 1.5574077246549023, 1.1578212823495777, 1.5574077246549023, -2.185039863261519, 1.5574077246549023, 1.1578212823495777, 1.5574077246549023, -2.185039863261519, 1.5574077246549023, 1.1578212823495777, more...

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

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

Sequence xms2zwqlohmbk

1.1752011936438014, -1.1752011936438014, -1.1752011936438014, 1.1752011936438014, 1.1752011936438014, -1.1752011936438014, -1.1752011936438014, 1.1752011936438014, 1.1752011936438014, -1.1752011936438014, -1.1752011936438014, 1.1752011936438014, 1.1752011936438014, -1.1752011936438014, -1.1752011936438014, 1.1752011936438014, 1.1752011936438014, -1.1752011936438014, -1.1752011936438014, 1.1752011936438014, 1.1752011936438014, -1.1752011936438014, -1.1752011936438014, 1.1752011936438014, 1.1752011936438014, more...

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

a(n)=sinh(∏[-a(n-1)])
a(0)=1
∏(a)=partial products of a
n≥0
4 operations
Trigonometric

Sequence ka5bomsfqeero

1.3258176636680326, 0.7853981633974483, 1.1071487177940904, 0.7853981633974483, 1.3258176636680326, 0.7853981633974483, 1.1071487177940904, 0.7853981633974483, 1.3258176636680326, 0.7853981633974483, 1.1071487177940904, 0.7853981633974483, 1.3258176636680326, 0.7853981633974483, 1.1071487177940904, 0.7853981633974483, 1.3258176636680326, 0.7853981633974483, 1.1071487177940904, 0.7853981633974483, 1.3258176636680326, 0.7853981633974483, 1.1071487177940904, 0.7853981633974483, 1.3258176636680326, more...

decimal, periodic-4, non-monotonic, +

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

Sequence hoojdkb0bk0dg

1.3862943611198906, 0, 0.6931471805599453, 0, 1.3862943611198906, 0, 0.6931471805599453, 0, 1.3862943611198906, 0, 0.6931471805599453, 0, 1.3862943611198906, 0, 0.6931471805599453, 0, 1.3862943611198906, 0, 0.6931471805599453, 0, 1.3862943611198906, 0, 0.6931471805599453, 0, 1.3862943611198906, more...

decimal, periodic-4, non-monotonic, +

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

Sequence 1rgqxsc5nmale

1.5574077246549023, -1.5574077246549023, -1.5574077246549023, 1.5574077246549023, 1.5574077246549023, -1.5574077246549023, -1.5574077246549023, 1.5574077246549023, 1.5574077246549023, -1.5574077246549023, -1.5574077246549023, 1.5574077246549023, 1.5574077246549023, -1.5574077246549023, -1.5574077246549023, 1.5574077246549023, 1.5574077246549023, -1.5574077246549023, -1.5574077246549023, 1.5574077246549023, 1.5574077246549023, -1.5574077246549023, -1.5574077246549023, 1.5574077246549023, 1.5574077246549023, more...

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

a(n)=tan(∏[-a(n-1)])
a(0)=1
∏(a)=partial products of a
n≥0
4 operations
Trigonometric

Sequence qanevlkkn1c1p

1.5707963267948966, -1.5707963267948966, -1.5707963267948966, 1.5707963267948966, 1.5707963267948966, -1.5707963267948966, -1.5707963267948966, 1.5707963267948966, 1.5707963267948966, -1.5707963267948966, -1.5707963267948966, 1.5707963267948966, 1.5707963267948966, -1.5707963267948966, -1.5707963267948966, 1.5707963267948966, 1.5707963267948966, -1.5707963267948966, -1.5707963267948966, 1.5707963267948966, 1.5707963267948966, -1.5707963267948966, -1.5707963267948966, 1.5707963267948966, 1.5707963267948966, more...

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

a(n)=asin(∏[-a(n-1)])
a(0)=1
∏(a)=partial products of a
n≥0
4 operations
Trigonometric

Sequence ftzf0oqgbakpc

1.5707963267948966, 0.7853981633974483, 0.46364760900080615, 0.32175055439664213, 1.5707963267948966, 0.7853981633974483, 0.46364760900080615, 0.32175055439664213, 1.5707963267948966, 0.7853981633974483, 0.46364760900080615, 0.32175055439664213, 1.5707963267948966, 0.7853981633974483, 0.46364760900080615, 0.32175055439664213, 1.5707963267948966, 0.7853981633974483, 0.46364760900080615, 0.32175055439664213, 1.5707963267948966, 0.7853981633974483, 0.46364760900080615, 0.32175055439664213, 1.5707963267948966, more...

decimal, periodic-4, non-monotonic, +

a(n)=acot(and(3, n))
and(a,b)=bitwise and
n≥0
4 operations
Trigonometric

Sequence whzspsdazml2e

1.5707963267948966, 1.5707963267948966, 0.46364760900080615, 0.46364760900080615, 1.5707963267948966, 1.5707963267948966, 0.46364760900080615, 0.46364760900080615, 1.5707963267948966, 1.5707963267948966, 0.46364760900080615, 0.46364760900080615, 1.5707963267948966, 1.5707963267948966, 0.46364760900080615, 0.46364760900080615, 1.5707963267948966, 1.5707963267948966, 0.46364760900080615, 0.46364760900080615, 1.5707963267948966, 1.5707963267948966, 0.46364760900080615, 0.46364760900080615, 1.5707963267948966, more...

decimal, periodic-4, non-monotonic, +

a(n)=acot(and(2, n))
and(a,b)=bitwise and
n≥0
4 operations
Trigonometric

Sequence 2lfk2w4rpxomi

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

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

a(n)=xor(Δ[a(n-2)], a(n-1))
a(0)=2
a(1)=1
Δ(a)=differences of a
xor(a,b)=bitwise exclusive or
n≥0
4 operations
Recursive

Sequence ud3yvrewug2xd

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

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

a(n)=a(n-1)/Δ[a(n-2)]
a(0)=2
a(1)=1
Δ(a)=differences of a
n≥0
4 operations
Recursive

Sequence 01m5u14mcx5jm

2, -0.5, -2, 0.5, 2, -0.5, -2, 0.5, 2, -0.5, -2, 0.5, 2, -0.5, -2, 0.5, 2, -0.5, -2, 0.5, 2, -0.5, -2, 0.5, 2, more...

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

a(n)=Δ[a(n-2)]/a(n-1)
a(0)=2
a(1)=1
Δ(a)=differences of a
n≥0
4 operations
Recursive

Sequence uibxw0qy3ryyd

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

integer, periodic-4, non-monotonic, +

a(n)=log2(gcd(n, 4))
gcd(a,b)=greatest common divisor
n≥0
4 operations
Power

Sequence aieimwhmgtj2e

2, 0.5, -2, -0.5, 2, 0.5, -2, -0.5, 2, 0.5, -2, -0.5, 2, 0.5, -2, -0.5, 2, 0.5, -2, -0.5, 2, 0.5, -2, -0.5, 2, more...

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

a(n)=Δ[a(n-2)]/a(n-1)
a(0)=2
a(1)=3
Δ(a)=differences of a
n≥0
4 operations
Recursive

Sequence zrx4fzrjsoywl

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

decimal, periodic-4, non-monotonic, +

a(n)=a(n-1)^Δ[a(n-2)]
a(0)=2
a(1)=1
Δ(a)=differences of a
n≥0
4 operations
Recursive

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