Sequence Database

A database with 899757 machine generated integer and decimal sequences.

Displaying result 0-99 of total 38071. [0] [1] [2] [3] [4] ... [380]

Sequence 54zyjv03o4o0i

1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 27, 29, 31, 33, 35, 37, 39, 41, 43, 45, 47, 49, 51, 53, 55, 57, 59, 61, 63, 65, 67, 69, 71, 73, 75, 77, 79, 81, 83, 85, 87, 89, 91, 93, 95, 97, 99, more...

integer, strictly-monotonic, +, A005408

a(n)=2+a(n-1)
a(0)=1
n≥0
3 operations
Recursive
a(n)=Δ(n²)
Δ(a)=differences of a
n≥0
3 operations
Arithmetic
a(n)=Δ(lcm(n, n²))
lcm(a,b)=least common multiple
Δ(a)=differences of a
n≥0
5 operations
Divisibility
a(n)=2^(2-1)+a(n-1)
a(0)=1
n≥0
7 operations
Power
a(n)=lpf(2*n)+a(n-1)
a(0)=1
lpf(n)=least prime factor of n
n≥0
6 operations
Prime

Sequence cy4jqnfcrgbrf

1, 0, 1, -1, 2, -1, 1, -2, 3, -1, 2, -3, 3, -2, 1, -3, 4, -1, 3, -4, 5, -3, 2, -5, 5, -2, 3, -5, 4, -3, 1, -4, 5, -1, 4, -5, 7, -4, 3, -7, 8, -3, 5, -8, 7, -5, 2, -7, 7, -2, more...

integer, non-monotonic, +-

a(n)=Δ(stern(n))
stern(n)=Stern-Brocot sequence
Δ(a)=differences of a
n≥0
3 operations
Recursive
a(n)=Δ(stern(lcm(n, 2)))
lcm(a,b)=least common multiple
stern(n)=Stern-Brocot sequence
Δ(a)=differences of a
n≥0
5 operations
Divisibility

Sequence kyl5y5xnisy4e

-5, -1.6666666667, -0.8333333333, -0.5, -0.3333333333, -0.2380952381, -0.1785714286, -0.1388888889, -0.1111111111, -0.0909090909, -0.0757575758, -0.0641025641, -0.0549450549, -0.0476190476, -0.0416666667, -0.0367647059, -0.0326797386, -0.0292397661, -0.0263157895, -0.0238095238, -0.0216450216, -0.0197628458, -0.018115942, -0.0166666667, -0.0153846154, more...

decimal, strictly-monotonic, -

a(n)=Δ(10/n)
Δ(a)=differences of a
n≥1
4 operations
Arithmetic

Sequence ba3fzg54evxsd

-4.5, -1.5, -0.75, -0.45, -0.3, -0.2142857143, -0.1607142857, -0.125, -0.1, -0.0818181818, -0.0681818182, -0.0576923077, -0.0494505495, -0.0428571429, -0.0375, -0.0330882353, -0.0294117647, -0.0263157895, -0.0236842105, -0.0214285714, -0.0194805195, -0.0177865613, -0.0163043478, -0.015, -0.0138461538, more...

decimal, strictly-monotonic, -

a(n)=Δ(9/n)
Δ(a)=differences of a
n≥1
4 operations
Arithmetic

Sequence dxgjs1qtmdksi

-4, -1.3333333333, -0.6666666667, -0.4, -0.2666666667, -0.1904761905, -0.1428571429, -0.1111111111, -0.0888888889, -0.0727272727, -0.0606060606, -0.0512820513, -0.043956044, -0.0380952381, -0.0333333333, -0.0294117647, -0.0261437908, -0.0233918129, -0.0210526316, -0.019047619, -0.0173160173, -0.0158102767, -0.0144927536, -0.0133333333, -0.0123076923, more...

decimal, strictly-monotonic, -

a(n)=Δ(8/n)
Δ(a)=differences of a
n≥1
4 operations
Arithmetic

Sequence 5xvfp13xtqty

-3.5, -1.1666666667, -0.5833333333, -0.35, -0.2333333333, -0.1666666667, -0.125, -0.0972222222, -0.0777777778, -0.0636363636, -0.053030303, -0.0448717949, -0.0384615385, -0.0333333333, -0.0291666667, -0.0257352941, -0.022875817, -0.0204678363, -0.0184210526, -0.0166666667, -0.0151515152, -0.0138339921, -0.0126811594, -0.0116666667, -0.0107692308, more...

decimal, strictly-monotonic, -

a(n)=Δ(7/n)
Δ(a)=differences of a
n≥1
4 operations
Arithmetic

Sequence eomzduuesj3yc

-3, -1, -0.5, -0.3, -0.2, -0.1428571429, -0.1071428571, -0.0833333333, -0.0666666667, -0.0545454545, -0.0454545455, -0.0384615385, -0.032967033, -0.0285714286, -0.025, -0.0220588235, -0.0196078431, -0.0175438596, -0.0157894737, -0.0142857143, -0.012987013, -0.0118577075, -0.0108695652, -0.01, -0.0092307692, more...

decimal, strictly-monotonic, -

a(n)=Δ(6/n)
Δ(a)=differences of a
n≥1
4 operations
Arithmetic

Sequence pq1bhqoktlrbn

-2.5, -0.8333333333, -0.4166666667, -0.25, -0.1666666667, -0.119047619, -0.0892857143, -0.0694444444, -0.0555555556, -0.0454545455, -0.0378787879, -0.0320512821, -0.0274725275, -0.0238095238, -0.0208333333, -0.0183823529, -0.0163398693, -0.014619883, -0.0131578947, -0.0119047619, -0.0108225108, -0.0098814229, -0.009057971, -0.0083333333, -0.0076923077, more...

decimal, strictly-monotonic, -

a(n)=Δ(5/n)
Δ(a)=differences of a
n≥1
4 operations
Arithmetic

Sequence jeyzgqxo0rkjp

-2, -0.6666666667, -0.3333333333, -0.2, -0.1333333333, -0.0952380952, -0.0714285714, -0.0555555556, -0.0444444444, -0.0363636364, -0.0303030303, -0.0256410256, -0.021978022, -0.019047619, -0.0166666667, -0.0147058824, -0.0130718954, -0.0116959064, -0.0105263158, -0.0095238095, -0.0086580087, -0.0079051383, -0.0072463768, -0.0066666667, -0.0061538462, more...

decimal, strictly-monotonic, -

a(n)=Δ(4/n)
Δ(a)=differences of a
n≥1
4 operations
Arithmetic

Sequence gioe1hte0yd4l

-1.5707963268, -0.5235987756, -0.2617993878, -0.1570796327, -0.1047197551, -0.0747998251, -0.0560998688, -0.0436332313, -0.034906585, -0.0285599332, -0.0237999443, -0.0201384144, -0.0172614981, -0.014959965, -0.0130899694, -0.011549973, -0.0102666427, -0.0091859434, -0.0082673491, -0.0074799825, -0.0067999841, -0.0062086811, -0.005691291, -0.0052359878, -0.0048332195, more...

decimal, strictly-monotonic, -

a(n)=Δ(π/n)
π=3.141...
Δ(a)=differences of a
n≥1
4 operations
Arithmetic

Sequence 5tvgwvq1zsldj

-1.5, -0.5, -0.25, -0.15, -0.1, -0.0714285714, -0.0535714286, -0.0416666667, -0.0333333333, -0.0272727273, -0.0227272727, -0.0192307692, -0.0164835165, -0.0142857143, -0.0125, -0.0110294118, -0.0098039216, -0.0087719298, -0.0078947368, -0.0071428571, -0.0064935065, -0.0059288538, -0.0054347826, -0.005, -0.0046153846, more...

decimal, strictly-monotonic, -

a(n)=Δ(3/n)
Δ(a)=differences of a
n≥1
4 operations
Arithmetic

Sequence kbt4jgby1ufie

-1, -0.3333333333, -0.1666666667, -0.1, -0.0666666667, -0.0476190476, -0.0357142857, -0.0277777778, -0.0222222222, -0.0181818182, -0.0151515152, -0.0128205128, -0.010989011, -0.0095238095, -0.0083333333, -0.0073529412, -0.0065359477, -0.0058479532, -0.0052631579, -0.0047619048, -0.0043290043, -0.0039525692, -0.0036231884, -0.0033333333, -0.0030769231, more...

decimal, strictly-monotonic, -

a(n)=Δ(2/n)
Δ(a)=differences of a
n≥1
4 operations
Arithmetic

Sequence 3u4ibfcgpvbpm

-0.5, -0.1666666667, -0.0833333333, -0.05, -0.0333333333, -0.0238095238, -0.0178571429, -0.0138888889, -0.0111111111, -0.0090909091, -0.0075757576, -0.0064102564, -0.0054945055, -0.0047619048, -0.0041666667, -0.0036764706, -0.0032679739, -0.0029239766, -0.0026315789, -0.0023809524, -0.0021645022, -0.0019762846, -0.0018115942, -0.0016666667, -0.0015384615, more...

decimal, strictly-monotonic, -

a(n)=Δ(1/n)
Δ(a)=differences of a
n≥1
4 operations
Arithmetic
a(n)=Δ(n^-1)
Δ(a)=differences of a
n≥1
5 operations
Power

Sequence viu0v4gm0l3ue

-10, 10, -10, 10, -10, 10, -10, 10, -10, 10, -10, 10, -10, 10, -10, 10, -10, 10, -10, 10, -10, 10, -10, 10, -10, 10, -10, 10, -10, 10, -10, 10, -10, 10, -10, 10, -10, 10, -10, 10, -10, 10, -10, 10, -10, 10, -10, 10, -10, 10, more...

integer, periodic-2, non-monotonic, +-

a(n)=Δ(-a(n-1))
a(0)=5
Δ(a)=differences of a
n≥0
3 operations
Recursive
a(n)=Δ(-a(n-1)%6)
a(0)=5
Δ(a)=differences of a
n≥0
5 operations
Divisibility

Sequence rjx3jnke3h2di

-8, 8, -8, 8, -8, 8, -8, 8, -8, 8, -8, 8, -8, 8, -8, 8, -8, 8, -8, 8, -8, 8, -8, 8, -8, 8, -8, 8, -8, 8, -8, 8, -8, 8, -8, 8, -8, 8, -8, 8, -8, 8, -8, 8, -8, 8, -8, 8, -8, 8, more...

integer, periodic-2, non-monotonic, +-

a(n)=Δ(-a(n-1))
a(0)=4
Δ(a)=differences of a
n≥0
3 operations
Recursive
a(n)=Δ(-a(n-1)%5)
a(0)=4
Δ(a)=differences of a
n≥0
5 operations
Divisibility
a(n)=Δ(-a(n-1))^3
a(0)=1
Δ(a)=differences of a
n≥0
5 operations
Power
a(n)=-Δ(C(9, a(n-1)))
a(0)=1
C(n,k)=binomial coefficient
Δ(a)=differences of a
n≥0
5 operations
Combinatoric

Sequence z5c1husulxmtf

-6, 6, -6, 6, -6, 6, -6, 6, -6, 6, -6, 6, -6, 6, -6, 6, -6, 6, -6, 6, -6, 6, -6, 6, -6, 6, -6, 6, -6, 6, -6, 6, -6, 6, -6, 6, -6, 6, -6, 6, -6, 6, -6, 6, -6, 6, -6, 6, -6, 6, more...

integer, periodic-2, non-monotonic, +-

a(n)=Δ(-a(n-1))
a(0)=3
Δ(a)=differences of a
n≥0
3 operations
Recursive
a(n)=Δ(-a(n-1)%4)
a(0)=3
Δ(a)=differences of a
n≥0
5 operations
Divisibility

Sequence lbuerrhp4pn2e

-4, 4, -4, 4, -4, 4, -4, 4, -4, 4, -4, 4, -4, 4, -4, 4, -4, 4, -4, 4, -4, 4, -4, 4, -4, 4, -4, 4, -4, 4, -4, 4, -4, 4, -4, 4, -4, 4, -4, 4, -4, 4, -4, 4, -4, 4, -4, 4, -4, 4, more...

integer, periodic-2, non-monotonic, +-

a(n)=Δ(-a(n-1))
a(0)=2
Δ(a)=differences of a
n≥0
3 operations
Recursive
a(n)=Δ(-a(n-1)%3)
a(0)=2
Δ(a)=differences of a
n≥0
5 operations
Divisibility
a(n)=Δ(round(tan(a(n-1))))
a(0)=2
Δ(a)=differences of a
n≥0
4 operations
Trigonometric

Sequence nexwtcywlydui

-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-2, non-monotonic, +-

a(n)=Δ(-a(n-1))
a(0)=1
Δ(a)=differences of a
n≥0
3 operations
Recursive
a(n)=Δ((-1)^n)
Δ(a)=differences of a
n≥0
5 operations
Power
a(n)=Δ(-a(n-1)%2)
a(0)=1
Δ(a)=differences of a
n≥0
5 operations
Divisibility

Sequence pohvfnbhh3lkf

1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, more...

integer, strictly-monotonic, +, A000027

a(n)=1+n
n≥0
3 operations
Arithmetic
a(n)=1+a(n-1)
a(0)=1
n≥0
3 operations
Recursive
a(n)=Δ(∑(n))
∑(a)=partial sums of a
Δ(a)=differences of a
n≥0
3 operations
Variable
a(n)=n%(2*n)
n≥1
5 operations
Divisibility
a(n)=C(1+n, n)
C(n,k)=binomial coefficient
n≥0
5 operations
Combinatoric
a(n)=(n/sqrt(n))²
n≥1
5 operations
Power
a(n)=n*λ(n²)
λ(n)=Liouville's function
n≥1
5 operations
Prime

Sequence gxadacd4fqvx

2, 12, 240, 65280, 4294901760, more...

integer, strictly-monotonic, +, A111403

a(n)=Δ(a(n-1)²)
a(0)=2
Δ(a)=differences of a
n≥0
3 operations
Recursive
a(n)=Δ(lcm(a(n-1), 2)²)
a(0)=2
lcm(a,b)=least common multiple
Δ(a)=differences of a
n≥0
5 operations
Divisibility
a(n)=Δ(sqrt(a(n-1))^4)
a(0)=2
Δ(a)=differences of a
n≥0
5 operations
Power

Sequence 13a3r41lgnctn

-9, 9, -9, 9, -9, 9, -9, 9, -9, 9, -9, 9, -9, 9, -9, 9, -9, 9, -9, 9, -9, 9, -9, 9, -9, 9, -9, 9, -9, 9, -9, 9, -9, 9, -9, 9, -9, 9, -9, 9, -9, 9, -9, 9, -9, 9, -9, 9, -9, 9, more...

integer, periodic-2, non-monotonic, +-

a(n)=Δ(1-a(n-1))
a(0)=5
Δ(a)=differences of a
n≥0
4 operations
Recursive
a(n)=-Δ(C(10, a(n-1)))
a(0)=1
C(n,k)=binomial coefficient
Δ(a)=differences of a
n≥0
5 operations
Combinatoric

Sequence es0grxtwzthbf

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

integer, periodic-2, non-monotonic, +-

a(n)=Δ(1-a(n-1))
a(0)=4
Δ(a)=differences of a
n≥0
4 operations
Recursive

Sequence 2yop3d345ivrb

-6.8584073464, 6.8584073464, -6.8584073464, 6.8584073464, -6.8584073464, 6.8584073464, -6.8584073464, 6.8584073464, -6.8584073464, 6.8584073464, -6.8584073464, 6.8584073464, -6.8584073464, 6.8584073464, -6.8584073464, 6.8584073464, -6.8584073464, 6.8584073464, -6.8584073464, 6.8584073464, -6.8584073464, 6.8584073464, -6.8584073464, 6.8584073464, -6.8584073464, more...

decimal, periodic-2, non-monotonic, +-

a(n)=Δ(π-a(n-1))
a(0)=5
π=3.141...
Δ(a)=differences of a
n≥0
4 operations
Recursive

Sequence spvrsc4mh25zc

-5, 5, -5, 5, -5, 5, -5, 5, -5, 5, -5, 5, -5, 5, -5, 5, -5, 5, -5, 5, -5, 5, -5, 5, -5, 5, -5, 5, -5, 5, -5, 5, -5, 5, -5, 5, -5, 5, -5, 5, -5, 5, -5, 5, -5, 5, -5, 5, -5, 5, more...

integer, periodic-2, non-monotonic, +-

a(n)=Δ(1-a(n-1))
a(0)=3
Δ(a)=differences of a
n≥0
4 operations
Recursive
a(n)=Δ(∑(-a(n-1))!)
a(0)=3
∑(a)=partial sums of a
Δ(a)=differences of a
n≥0
5 operations
Combinatoric

Sequence jqs21njvvzzje

-4.8584073464, 4.8584073464, -4.8584073464, 4.8584073464, -4.8584073464, 4.8584073464, -4.8584073464, 4.8584073464, -4.8584073464, 4.8584073464, -4.8584073464, 4.8584073464, -4.8584073464, 4.8584073464, -4.8584073464, 4.8584073464, -4.8584073464, 4.8584073464, -4.8584073464, 4.8584073464, -4.8584073464, 4.8584073464, -4.8584073464, 4.8584073464, -4.8584073464, more...

decimal, periodic-2, non-monotonic, +-

a(n)=Δ(π-a(n-1))
a(0)=4
π=3.141...
Δ(a)=differences of a
n≥0
4 operations
Recursive

Sequence hjivluncxxcnm

-4.8, 4.8, -4.8, 4.8, -4.8, 4.8, -4.8, 4.8, -4.8, 4.8, -4.8, 4.8, -4.8, 4.8, -4.8, 4.8, -4.8, 4.8, -4.8, 4.8, -4.8, 4.8, -4.8, 4.8, -4.8, more...

decimal, periodic-2, non-monotonic, +-

a(n)=Δ(1/a(n-1))
a(0)=5
Δ(a)=differences of a
n≥0
4 operations
Recursive
a(n)=Δ(a(n-1)^-1)
a(0)=5
Δ(a)=differences of a
n≥0
5 operations
Power

Sequence 1tnw3nd4ygm1i

-4.6, 4.6, -4.6, 4.6, -4.6, 4.6, -4.6, 4.6, -4.6, 4.6, -4.6, 4.6, -4.6, 4.6, -4.6, 4.6, -4.6, 4.6, -4.6, 4.6, -4.6, 4.6, -4.6, 4.6, -4.6, more...

decimal, periodic-2, non-monotonic, +-

a(n)=Δ(2/a(n-1))
a(0)=5
Δ(a)=differences of a
n≥0
4 operations
Recursive

Sequence zlqystrtpnnvf

-4.5, -0.45, -0.045, -0.0045, -0.00045, -0.000045, -0.0000045, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, more...

decimal, strictly-monotonic, -

a(n)=Δ(a(n-1)/10)
a(0)=5
Δ(a)=differences of a
n≥0
4 operations
Recursive

Sequence zx4ejtqfjzttk

-4.4444444444, -0.4938271605, -0.0548696845, -0.0060966316, -0.0006774035, -0.0000752671, -0.000008363, -0.0000009292, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, more...

decimal, strictly-monotonic, -

a(n)=Δ(a(n-1)/9)
a(0)=5
Δ(a)=differences of a
n≥0
4 operations
Recursive

Sequence alnycvm0ficb

-4.4, 4.4, -4.4, 4.4, -4.4, 4.4, -4.4, 4.4, -4.4, 4.4, -4.4, 4.4, -4.4, 4.4, -4.4, 4.4, -4.4, 4.4, -4.4, 4.4, -4.4, 4.4, -4.4, 4.4, -4.4, more...

decimal, periodic-2, non-monotonic, +-

a(n)=Δ(3/a(n-1))
a(0)=5
Δ(a)=differences of a
n≥0
4 operations
Recursive

Sequence 3mfgwj11ddrni

-4.375, -0.546875, -0.068359375, -0.0085449219, -0.0010681152, -0.0001335144, -0.0000166893, -0.0000020862, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, more...

decimal, strictly-monotonic, -

a(n)=Δ(a(n-1)/8)
a(0)=5
Δ(a)=differences of a
n≥0
4 operations
Recursive

Sequence lf40toov5ys3j

-4.3716814693, 4.3716814693, -4.3716814693, 4.3716814693, -4.3716814693, 4.3716814693, -4.3716814693, 4.3716814693, -4.3716814693, 4.3716814693, -4.3716814693, 4.3716814693, -4.3716814693, 4.3716814693, -4.3716814693, 4.3716814693, -4.3716814693, 4.3716814693, -4.3716814693, 4.3716814693, -4.3716814693, 4.3716814693, -4.3716814693, 4.3716814693, -4.3716814693, more...

decimal, periodic-2, non-monotonic, +-

a(n)=Δ(π/a(n-1))
a(0)=5
π=3.141...
Δ(a)=differences of a
n≥0
4 operations
Recursive

Sequence 1eepnsysn3v3h

-4.2857142857, -0.612244898, -0.0874635569, -0.0124947938, -0.0017849705, -0.0002549958, -0.000036428, -0.000005204, -0.0000007434, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, more...

decimal, strictly-monotonic, -

a(n)=Δ(a(n-1)/7)
a(0)=5
Δ(a)=differences of a
n≥0
4 operations
Recursive

Sequence u55lv4wmkuksp

-4.2, 4.2, -4.2, 4.2, -4.2, 4.2, -4.2, 4.2, -4.2, 4.2, -4.2, 4.2, -4.2, 4.2, -4.2, 4.2, -4.2, 4.2, -4.2, 4.2, -4.2, 4.2, -4.2, 4.2, -4.2, more...

decimal, periodic-2, non-monotonic, +-

a(n)=Δ(4/a(n-1))
a(0)=5
Δ(a)=differences of a
n≥0
4 operations
Recursive

Sequence sjcrkglggiwdp

-4.1666666667, -0.6944444444, -0.1157407407, -0.0192901235, -0.0032150206, -0.0005358368, -0.0000893061, -0.0000148844, -0.0000024807, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, more...

decimal, strictly-monotonic, -

a(n)=Δ(a(n-1)/6)
a(0)=5
Δ(a)=differences of a
n≥0
4 operations
Recursive

Sequence 0jrckd0myukpn

-4, -0.8, -0.16, -0.032, -0.0064, -0.00128, -0.000256, -0.0000512, -0.00001024, -0.000002048, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, more...

decimal, strictly-monotonic, -

a(n)=Δ(a(n-1)/5)
a(0)=5
Δ(a)=differences of a
n≥0
4 operations
Recursive

Sequence fiewtwbj21clk

-3.8, 3.8, -3.8, 3.8, -3.8, 3.8, -3.8, 3.8, -3.8, 3.8, -3.8, 3.8, -3.8, 3.8, -3.8, 3.8, -3.8, 3.8, -3.8, 3.8, -3.8, 3.8, -3.8, 3.8, -3.8, more...

decimal, periodic-2, non-monotonic, +-

a(n)=Δ(6/a(n-1))
a(0)=5
Δ(a)=differences of a
n≥0
4 operations
Recursive

Sequence e1ddznmhth2ff

-3.75, -0.9375, -0.234375, -0.05859375, -0.0146484375, -0.0036621094, -0.0009155273, -0.0002288818, -0.0000572205, -0.0000143051, -0.0000035763, -0.0000008941, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, more...

decimal, strictly-monotonic, -

a(n)=Δ(a(n-1)/4)
a(0)=5
Δ(a)=differences of a
n≥0
4 operations
Recursive

Sequence 2w4lgujsrpbin

-3.75, 3.75, -3.75, 3.75, -3.75, 3.75, -3.75, 3.75, -3.75, 3.75, -3.75, 3.75, -3.75, 3.75, -3.75, 3.75, -3.75, 3.75, -3.75, 3.75, -3.75, 3.75, -3.75, 3.75, -3.75, more...

decimal, periodic-2, non-monotonic, +-

a(n)=Δ(1/a(n-1))
a(0)=4
Δ(a)=differences of a
n≥0
4 operations
Recursive
a(n)=Δ(a(n-1)^-1)
a(0)=4
Δ(a)=differences of a
n≥0
5 operations
Power

Sequence 0a2vm4gloq20m

-3.6, -0.36, -0.036, -0.0036, -0.00036, -0.000036, -0.0000036, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, more...

decimal, strictly-monotonic, -

a(n)=Δ(a(n-1)/10)
a(0)=4
Δ(a)=differences of a
n≥0
4 operations
Recursive

Sequence hn0tjgu23h5ec

-3.6, 3.6, -3.6, 3.6, -3.6, 3.6, -3.6, 3.6, -3.6, 3.6, -3.6, 3.6, -3.6, 3.6, -3.6, 3.6, -3.6, 3.6, -3.6, 3.6, -3.6, 3.6, -3.6, 3.6, -3.6, more...

decimal, periodic-2, non-monotonic, +-

a(n)=Δ(7/a(n-1))
a(0)=5
Δ(a)=differences of a
n≥0
4 operations
Recursive

Sequence emokux5gcskpc

-3.5555555556, -0.3950617284, -0.0438957476, -0.0048773053, -0.0005419228, -0.0000602136, -0.0000066904, -0.0000007434, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, more...

decimal, strictly-monotonic, -

a(n)=Δ(a(n-1)/9)
a(0)=4
Δ(a)=differences of a
n≥0
4 operations
Recursive

Sequence ggq5yvhfshcmk

-3.5, -0.4375, -0.0546875, -0.0068359375, -0.0008544922, -0.0001068115, -0.0000133514, -0.0000016689, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, more...

decimal, strictly-monotonic, -

a(n)=Δ(a(n-1)/8)
a(0)=4
Δ(a)=differences of a
n≥0
4 operations
Recursive

Sequence 1xee0xuz0dstg

-3.5, 3.5, -3.5, 3.5, -3.5, 3.5, -3.5, 3.5, -3.5, 3.5, -3.5, 3.5, -3.5, 3.5, -3.5, 3.5, -3.5, 3.5, -3.5, 3.5, -3.5, 3.5, -3.5, 3.5, -3.5, more...

decimal, periodic-2, non-monotonic, +-

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

Sequence qyy00dwp04ixn

-3.4285714286, -0.4897959184, -0.0699708455, -0.0099958351, -0.0014279764, -0.0002039966, -0.0000291424, -0.0000041632, -0.0000005947, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, more...

decimal, strictly-monotonic, -

a(n)=Δ(a(n-1)/7)
a(0)=4
Δ(a)=differences of a
n≥0
4 operations
Recursive

Sequence s2dwljw3b02o

-3.4084505691, -1.0849435127, -0.345348246, -0.1099277609, -0.0349910931, -0.0111380108, -0.003545339, -0.0011285164, -0.0003592179, -0.0001143426, -0.0000363964, -0.0000115853, -0.0000036877, -0.0000011738, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, more...

decimal, strictly-monotonic, -

a(n)=Δ(a(n-1)/π)
a(0)=5
π=3.141...
Δ(a)=differences of a
n≥0
4 operations
Recursive

Sequence pq1tgdomemqae

-3.4, 3.4, -3.4, 3.4, -3.4, 3.4, -3.4, 3.4, -3.4, 3.4, -3.4, 3.4, -3.4, 3.4, -3.4, 3.4, -3.4, 3.4, -3.4, 3.4, -3.4, 3.4, -3.4, 3.4, -3.4, more...

decimal, periodic-2, non-monotonic, +-

a(n)=Δ(8/a(n-1))
a(0)=5
Δ(a)=differences of a
n≥0
4 operations
Recursive

Sequence noq2n50cb0jdn

-3.3333333333, -0.5555555556, -0.0925925926, -0.0154320988, -0.0025720165, -0.0004286694, -0.0000714449, -0.0000119075, -0.0000019846, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, more...

decimal, strictly-monotonic, -

a(n)=Δ(a(n-1)/6)
a(0)=4
Δ(a)=differences of a
n≥0
4 operations
Recursive

Sequence qbyqj2lhlqhed

-3.3333333333, -1.1111111111, -0.3703703704, -0.1234567901, -0.0411522634, -0.0137174211, -0.0045724737, -0.0015241579, -0.0005080526, -0.0001693509, -0.0000564503, -0.0000188168, -0.0000062723, -0.0000020908, -0.0000006969, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, more...

decimal, strictly-monotonic, -

a(n)=Δ(a(n-1)/3)
a(0)=5
Δ(a)=differences of a
n≥0
4 operations
Recursive

Sequence zthnzbowpes1l

-3.25, 3.25, -3.25, 3.25, -3.25, 3.25, -3.25, 3.25, -3.25, 3.25, -3.25, 3.25, -3.25, 3.25, -3.25, 3.25, -3.25, 3.25, -3.25, 3.25, -3.25, 3.25, -3.25, 3.25, -3.25, more...

decimal, periodic-2, non-monotonic, +-

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

Sequence lvl2pu00nqejj

-3.2146018366, 3.2146018366, -3.2146018366, 3.2146018366, -3.2146018366, 3.2146018366, -3.2146018366, 3.2146018366, -3.2146018366, 3.2146018366, -3.2146018366, 3.2146018366, -3.2146018366, 3.2146018366, -3.2146018366, 3.2146018366, -3.2146018366, 3.2146018366, -3.2146018366, 3.2146018366, -3.2146018366, 3.2146018366, -3.2146018366, 3.2146018366, -3.2146018366, more...

decimal, periodic-2, non-monotonic, +-

a(n)=Δ(π/a(n-1))
a(0)=4
π=3.141...
Δ(a)=differences of a
n≥0
4 operations
Recursive

Sequence zjk04ajjphrte

-3.2, -0.64, -0.128, -0.0256, -0.00512, -0.001024, -0.0002048, -0.00004096, -0.000008192, -0.0000016384, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, more...

decimal, strictly-monotonic, -

a(n)=Δ(a(n-1)/5)
a(0)=4
Δ(a)=differences of a
n≥0
4 operations
Recursive

Sequence yw5c52lb2w0yi

-3.2, 3.2, -3.2, 3.2, -3.2, 3.2, -3.2, 3.2, -3.2, 3.2, -3.2, 3.2, -3.2, 3.2, -3.2, 3.2, -3.2, 3.2, -3.2, 3.2, -3.2, 3.2, -3.2, 3.2, -3.2, more...

decimal, periodic-2, non-monotonic, +-

a(n)=Δ(9/a(n-1))
a(0)=5
Δ(a)=differences of a
n≥0
4 operations
Recursive

Sequence v5bcfppwbf5y

-3, -0.75, -0.1875, -0.046875, -0.01171875, -0.0029296875, -0.0007324219, -0.0001831055, -0.0000457764, -0.0000114441, -0.000002861, -0.0000007153, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, more...

decimal, strictly-monotonic, -

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

Sequence o05gksii110cl

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

integer, periodic-2, non-monotonic, +-

a(n)=Δ(1-a(n-1))
a(0)=2
Δ(a)=differences of a
n≥0
4 operations
Recursive
a(n)=Δ(gcd(n, 2)²)
gcd(a,b)=greatest common divisor
Δ(a)=differences of a
n≥0
5 operations
Divisibility

Sequence uabqnvi4hmfni

-2.8584073464, 2.8584073464, -2.8584073464, 2.8584073464, -2.8584073464, 2.8584073464, -2.8584073464, 2.8584073464, -2.8584073464, 2.8584073464, -2.8584073464, 2.8584073464, -2.8584073464, 2.8584073464, -2.8584073464, 2.8584073464, -2.8584073464, 2.8584073464, -2.8584073464, 2.8584073464, -2.8584073464, 2.8584073464, -2.8584073464, 2.8584073464, -2.8584073464, more...

decimal, periodic-2, non-monotonic, +-

a(n)=Δ(π-a(n-1))
a(0)=3
π=3.141...
Δ(a)=differences of a
n≥0
4 operations
Recursive

Sequence 3lm0hbgxywnyn

-2.75, 2.75, -2.75, 2.75, -2.75, 2.75, -2.75, 2.75, -2.75, 2.75, -2.75, 2.75, -2.75, 2.75, -2.75, 2.75, -2.75, 2.75, -2.75, 2.75, -2.75, 2.75, -2.75, 2.75, -2.75, more...

decimal, periodic-2, non-monotonic, +-

a(n)=Δ(5/a(n-1))
a(0)=4
Δ(a)=differences of a
n≥0
4 operations
Recursive

Sequence jyfrcxc5bij3i

-2.7267604553, -0.8679548102, -0.2762785968, -0.0879422087, -0.0279928744, -0.0089104087, -0.0028362712, -0.0009028132, -0.0002873744, -0.0000914741, -0.0000291171, -0.0000092683, -0.0000029502, -0.0000009391, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, more...

decimal, strictly-monotonic, -

a(n)=Δ(a(n-1)/π)
a(0)=4
π=3.141...
Δ(a)=differences of a
n≥0
4 operations
Recursive

Sequence pytjws3qsoiid

-2.7, -0.27, -0.027, -0.0027, -0.00027, -0.000027, -0.0000027, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, more...

decimal, strictly-monotonic, -

a(n)=Δ(a(n-1)/10)
a(0)=3
Δ(a)=differences of a
n≥0
4 operations
Recursive

Sequence 332wcapqre5yp

-2.6666666667, -0.8888888889, -0.2962962963, -0.0987654321, -0.0329218107, -0.0109739369, -0.003657979, -0.0012193263, -0.0004064421, -0.0001354807, -0.0000451602, -0.0000150534, -0.0000050178, -0.0000016726, -0.0000005575, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, more...

decimal, strictly-monotonic, -

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

Sequence jemntycbawr0o

-2.6666666667, -0.2962962963, -0.0329218107, -0.003657979, -0.0004064421, -0.0000451602, -0.0000050178, -0.0000005575, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, more...

decimal, strictly-monotonic, -

a(n)=Δ(a(n-1)/9)
a(0)=3
Δ(a)=differences of a
n≥0
4 operations
Recursive

Sequence x43zurd1rfssl

-2.6666666667, 2.6666666667, -2.6666666667, 2.6666666667, -2.6666666667, 2.6666666667, -2.6666666667, 2.6666666667, -2.6666666667, 2.6666666667, -2.6666666667, 2.6666666667, -2.6666666667, 2.6666666667, -2.6666666667, 2.6666666667, -2.6666666667, 2.6666666667, -2.6666666667, 2.6666666667, -2.6666666667, 2.6666666667, -2.6666666667, 2.6666666667, -2.6666666667, more...

decimal, periodic-2, non-monotonic, +-

a(n)=Δ(1/a(n-1))
a(0)=3
Δ(a)=differences of a
n≥0
4 operations
Recursive
a(n)=Δ(a(n-1)^-1)
a(0)=3
Δ(a)=differences of a
n≥0
5 operations
Power

Sequence cajjow2oqnt1b

-2.625, -0.328125, -0.041015625, -0.0051269531, -0.0006408691, -0.0000801086, -0.0000100136, -0.0000012517, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, more...

decimal, strictly-monotonic, -

a(n)=Δ(a(n-1)/8)
a(0)=3
Δ(a)=differences of a
n≥0
4 operations
Recursive

Sequence 5spactphnb5hb

-2.5714285714, -0.3673469388, -0.0524781341, -0.0074968763, -0.0010709823, -0.0001529975, -0.0000218568, -0.0000031224, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, more...

decimal, strictly-monotonic, -

a(n)=Δ(a(n-1)/7)
a(0)=3
Δ(a)=differences of a
n≥0
4 operations
Recursive

Sequence wtcbcmorxoajk

-2.5, -1.25, -0.625, -0.3125, -0.15625, -0.078125, -0.0390625, -0.01953125, -0.009765625, -0.0048828125, -0.0024414062, -0.0012207031, -0.0006103516, -0.0003051758, -0.0001525879, -0.0000762939, -0.000038147, -0.0000190735, -0.0000095367, -0.0000047684, -0.0000023842, -0.0000011921, -0.000000596, 0, 0, more...

decimal, strictly-monotonic, -

a(n)=Δ(a(n-1)/2)
a(0)=5
Δ(a)=differences of a
n≥0
4 operations
Recursive

Sequence dkx2vh4j54tan

-2.5, -0.4166666667, -0.0694444444, -0.0115740741, -0.0019290123, -0.0003215021, -0.0000535837, -0.0000089306, -0.0000014884, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, more...

decimal, strictly-monotonic, -

a(n)=Δ(a(n-1)/6)
a(0)=3
Δ(a)=differences of a
n≥0
4 operations
Recursive

Sequence 4hogjjrul34th

-2.5, 2.5, -2.5, 2.5, -2.5, 2.5, -2.5, 2.5, -2.5, 2.5, -2.5, 2.5, -2.5, 2.5, -2.5, 2.5, -2.5, 2.5, -2.5, 2.5, -2.5, 2.5, -2.5, 2.5, -2.5, more...

decimal, periodic-2, non-monotonic, +-

a(n)=Δ(6/a(n-1))
a(0)=4
Δ(a)=differences of a
n≥0
4 operations
Recursive

Sequence njski5a0ttxrm

-2.4, -0.48, -0.096, -0.0192, -0.00384, -0.000768, -0.0001536, -0.00003072, -0.000006144, -0.0000012288, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, more...

decimal, strictly-monotonic, -

a(n)=Δ(a(n-1)/5)
a(0)=3
Δ(a)=differences of a
n≥0
4 operations
Recursive

Sequence 3cysfiybwf2vf

-2.3333333333, 2.3333333333, -2.3333333333, 2.3333333333, -2.3333333333, 2.3333333333, -2.3333333333, 2.3333333333, -2.3333333333, 2.3333333333, -2.3333333333, 2.3333333333, -2.3333333333, 2.3333333333, -2.3333333333, 2.3333333333, -2.3333333333, 2.3333333333, -2.3333333333, 2.3333333333, -2.3333333333, 2.3333333333, -2.3333333333, 2.3333333333, -2.3333333333, more...

decimal, periodic-2, non-monotonic, +-

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

Sequence yrzomgqn1olse

-2.25, -0.5625, -0.140625, -0.03515625, -0.0087890625, -0.0021972656, -0.0005493164, -0.0001373291, -0.0000343323, -0.0000085831, -0.0000021458, -0.0000005364, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, more...

decimal, strictly-monotonic, -

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

Sequence xnncsrrc4poup

-2.25, 2.25, -2.25, 2.25, -2.25, 2.25, -2.25, 2.25, -2.25, 2.25, -2.25, 2.25, -2.25, 2.25, -2.25, 2.25, -2.25, 2.25, -2.25, 2.25, -2.25, 2.25, -2.25, 2.25, -2.25, more...

decimal, periodic-2, non-monotonic, +-

a(n)=Δ(7/a(n-1))
a(0)=4
Δ(a)=differences of a
n≥0
4 operations
Recursive

Sequence yfgmmx0e4jrzp

-2.0450703414, -0.6509661076, -0.2072089476, -0.0659566565, -0.0209946558, -0.0066828065, -0.0021272034, -0.0006771099, -0.0002155308, -0.0000686056, -0.0000218378, -0.0000069512, -0.0000022126, -0.0000007043, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, more...

decimal, strictly-monotonic, -

a(n)=Δ(a(n-1)/π)
a(0)=3
π=3.141...
Δ(a)=differences of a
n≥0
4 operations
Recursive

Sequence eypjxrzjpynmo

-2, -1, -0.5, -0.25, -0.125, -0.0625, -0.03125, -0.015625, -0.0078125, -0.00390625, -0.001953125, -0.0009765625, -0.0004882812, -0.0002441406, -0.0001220703, -0.0000610352, -0.0000305176, -0.0000152588, -0.0000076294, -0.0000038147, -0.0000019073, -0.0000009537, 0, 0, 0, more...

decimal, strictly-monotonic, -

a(n)=Δ(a(n-1)/2)
a(0)=4
Δ(a)=differences of a
n≥0
4 operations
Recursive
a(n)=Δ(log(sqrt(exp(a(n-1)))))
a(0)=4
Δ(a)=differences of a
n≥0
5 operations
Power

Sequence bfcwix4oy425h

-2, -0.6666666667, -0.2222222222, -0.0740740741, -0.024691358, -0.0082304527, -0.0027434842, -0.0009144947, -0.0003048316, -0.0001016105, -0.0000338702, -0.0000112901, -0.0000037634, -0.0000012545, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, more...

decimal, strictly-monotonic, -

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

Sequence hlyiqrxubtuj

-1.9528024488, 1.9528024488, -1.9528024488, 1.9528024488, -1.9528024488, 1.9528024488, -1.9528024488, 1.9528024488, -1.9528024488, 1.9528024488, -1.9528024488, 1.9528024488, -1.9528024488, 1.9528024488, -1.9528024488, 1.9528024488, -1.9528024488, 1.9528024488, -1.9528024488, 1.9528024488, -1.9528024488, 1.9528024488, -1.9528024488, 1.9528024488, -1.9528024488, more...

decimal, periodic-2, non-monotonic, +-

a(n)=Δ(π/a(n-1))
a(0)=3
π=3.141...
Δ(a)=differences of a
n≥0
4 operations
Recursive

Sequence uttmnjgaz0puo

-1.8, -0.18, -0.018, -0.0018, -0.00018, -0.000018, -0.0000018, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, more...

decimal, strictly-monotonic, -

a(n)=Δ(a(n-1)/10)
a(0)=2
Δ(a)=differences of a
n≥0
4 operations
Recursive

Sequence izv1tzqbuufsd

-1.7777777778, -0.1975308642, -0.0219478738, -0.0024386526, -0.0002709614, -0.0000301068, -0.0000033452, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, more...

decimal, strictly-monotonic, -

a(n)=Δ(a(n-1)/9)
a(0)=2
Δ(a)=differences of a
n≥0
4 operations
Recursive

Sequence x5vm2dywlbnjm

-1.75, -0.21875, -0.02734375, -0.0034179688, -0.0004272461, -0.0000534058, -0.0000066757, -0.0000008345, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, more...

decimal, strictly-monotonic, -

a(n)=Δ(a(n-1)/8)
a(0)=2
Δ(a)=differences of a
n≥0
4 operations
Recursive

Sequence njenv5yoiwvae

-1.75, 1.75, -1.75, 1.75, -1.75, 1.75, -1.75, 1.75, -1.75, 1.75, -1.75, 1.75, -1.75, 1.75, -1.75, 1.75, -1.75, 1.75, -1.75, 1.75, -1.75, 1.75, -1.75, 1.75, -1.75, more...

decimal, periodic-2, non-monotonic, +-

a(n)=Δ(9/a(n-1))
a(0)=4
Δ(a)=differences of a
n≥0
4 operations
Recursive

Sequence wae014c1ti2zf

-1.7142857143, -0.2448979592, -0.0349854227, -0.0049979175, -0.0007139882, -0.0001019983, -0.0000145712, -0.0000020816, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, more...

decimal, strictly-monotonic, -

a(n)=Δ(a(n-1)/7)
a(0)=2
Δ(a)=differences of a
n≥0
4 operations
Recursive

Sequence s15qfojtexbkg

-1.6666666667, -0.2777777778, -0.0462962963, -0.0077160494, -0.0012860082, -0.0002143347, -0.0000357225, -0.0000059537, -0.0000009923, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, more...

decimal, strictly-monotonic, -

a(n)=Δ(a(n-1)/6)
a(0)=2
Δ(a)=differences of a
n≥0
4 operations
Recursive

Sequence h3jizhqrmhmw

-1.6666666667, 1.6666666667, -1.6666666667, 1.6666666667, -1.6666666667, 1.6666666667, -1.6666666667, 1.6666666667, -1.6666666667, 1.6666666667, -1.6666666667, 1.6666666667, -1.6666666667, 1.6666666667, -1.6666666667, 1.6666666667, -1.6666666667, 1.6666666667, -1.6666666667, 1.6666666667, -1.6666666667, 1.6666666667, -1.6666666667, 1.6666666667, -1.6666666667, more...

decimal, periodic-2, non-monotonic, +-

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

Sequence aofughryf2y2p

-1.6, -0.32, -0.064, -0.0128, -0.00256, -0.000512, -0.0001024, -0.00002048, -0.000004096, -0.0000008192, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, more...

decimal, strictly-monotonic, -

a(n)=Δ(a(n-1)/5)
a(0)=2
Δ(a)=differences of a
n≥0
4 operations
Recursive

Sequence oeu0asyhamycj

-1.5, -0.75, -0.375, -0.1875, -0.09375, -0.046875, -0.0234375, -0.01171875, -0.005859375, -0.0029296875, -0.0014648438, -0.0007324219, -0.0003662109, -0.0001831055, -0.0000915527, -0.0000457764, -0.0000228882, -0.0000114441, -0.000005722, -0.000002861, -0.0000014305, -0.0000007153, 0, 0, 0, more...

decimal, strictly-monotonic, -

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

Sequence bkqocp4babldj

-1.5, -0.375, -0.09375, -0.0234375, -0.005859375, -0.0014648438, -0.0003662109, -0.0000915527, -0.0000228882, -0.000005722, -0.0000014305, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, more...

decimal, strictly-monotonic, -

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

Sequence odimkcycgfxmi

-1.5, 1.5, -1.5, 1.5, -1.5, 1.5, -1.5, 1.5, -1.5, 1.5, -1.5, 1.5, -1.5, 1.5, -1.5, 1.5, -1.5, 1.5, -1.5, 1.5, -1.5, 1.5, -1.5, 1.5, -1.5, more...

decimal, periodic-2, non-monotonic, +-

a(n)=Δ(1/a(n-1))
a(0)=2
Δ(a)=differences of a
n≥0
4 operations
Recursive
a(n)=Δ(a(n-1)^-1)
a(0)=2
Δ(a)=differences of a
n≥0
5 operations
Power

Sequence n5300zh1g3tre

-1.3633802276, -0.4339774051, -0.1381392984, -0.0439711044, -0.0139964372, -0.0044552043, -0.0014181356, -0.0004514066, -0.0001436872, -0.000045737, -0.0000145586, -0.0000046341, -0.0000014751, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, more...

decimal, strictly-monotonic, -

a(n)=Δ(a(n-1)/π)
a(0)=2
π=3.141...
Δ(a)=differences of a
n≥0
4 operations
Recursive

Sequence muecxgbe2udoe

-1.3333333333, -0.4444444444, -0.1481481481, -0.049382716, -0.0164609053, -0.0054869684, -0.0018289895, -0.0006096632, -0.0002032211, -0.0000677404, -0.0000225801, -0.0000075267, -0.0000025089, -0.0000008363, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, more...

decimal, strictly-monotonic, -

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

Sequence xuxyrbr2huqjh

-1.3333333333, 1.3333333333, -1.3333333333, 1.3333333333, -1.3333333333, 1.3333333333, -1.3333333333, 1.3333333333, -1.3333333333, 1.3333333333, -1.3333333333, 1.3333333333, -1.3333333333, 1.3333333333, -1.3333333333, 1.3333333333, -1.3333333333, 1.3333333333, -1.3333333333, 1.3333333333, -1.3333333333, 1.3333333333, -1.3333333333, 1.3333333333, -1.3333333333, more...

decimal, periodic-2, non-monotonic, +-

a(n)=Δ(5/a(n-1))
a(0)=3
Δ(a)=differences of a
n≥0
4 operations
Recursive

Sequence ll5ccmftrfsff

-1, -3, -5, -7, -9, -11, -13, -15, -17, -19, -21, -23, -25, -27, -29, -31, -33, -35, -37, -39, -41, -43, -45, -47, -49, -51, -53, -55, -57, -59, -61, -63, -65, -67, -69, -71, -73, -75, -77, -79, -81, -83, -85, -87, -89, -91, -93, -95, -97, -99, more...

integer, strictly-monotonic, -

a(n)=Δ(-n²)
Δ(a)=differences of a
n≥0
4 operations
Arithmetic
a(n)=Δ(∑(a(n-1)-2))
a(0)=1
∑(a)=partial sums of a
Δ(a)=differences of a
n≥0
5 operations
Recursive
a(n)=(1-n)%n-n
n≥1
7 operations
Divisibility
a(n)=1-n*lpf(n+n)
lpf(n)=least prime factor of n
n≥1
8 operations
Prime

Sequence in4fy35ro1kyh

-1, -0.5, -0.25, -0.125, -0.0625, -0.03125, -0.015625, -0.0078125, -0.00390625, -0.001953125, -0.0009765625, -0.0004882812, -0.0002441406, -0.0001220703, -0.0000610352, -0.0000305176, -0.0000152588, -0.0000076294, -0.0000038147, -0.0000019073, -0.0000009537, 0, 0, 0, 0, more...

decimal, strictly-monotonic, -

a(n)=-2^-n
n≥0
5 operations
Power
a(n)=Δ(a(n-1)/2)
a(0)=2
Δ(a)=differences of a
n≥0
4 operations
Recursive

Sequence z4lerhkuolz1l

-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-2, non-monotonic, +-

a(n)=Δ(1-a(n-1))
a(0)=1
Δ(a)=differences of a
n≥0
4 operations
Recursive
a(n)=Δ(gcd(n, 2))
gcd(a,b)=greatest common divisor
Δ(a)=differences of a
n≥0
4 operations
Divisibility
a(n)=-(-1)^n
n≥0
5 operations
Power
a(n)=Δ(cf(2*n))
cf(a)=characteristic function of a (in range)
Δ(a)=differences of a
n≥0
5 operations
Arithmetic
a(n)=Δ((2/a(n-1))!)
a(0)=2
Δ(a)=differences of a
n≥0
5 operations
Combinatoric
a(n)=Δ(floor(cos(a(n-1))))
a(0)=1
Δ(a)=differences of a
n≥0
4 operations
Trigonometric

Sequence g43y3c0oisp3o

-0.9, -0.09, -0.009, -0.0009, -0.00009, -0.000009, -0.0000009, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, more...

decimal, strictly-monotonic, -

a(n)=Δ(10^-n)
Δ(a)=differences of a
n≥0
5 operations
Power
a(n)=Δ(a(n-1)/10)
a(0)=1
Δ(a)=differences of a
n≥0
4 operations
Recursive

Sequence 0p0th2iai0klk

-0.8888888889, -0.0987654321, -0.0109739369, -0.0012193263, -0.0001354807, -0.0000150534, -0.0000016726, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, more...

decimal, strictly-monotonic, -

a(n)=Δ(a(n-1)/9)
a(0)=1
Δ(a)=differences of a
n≥0
4 operations
Recursive
a(n)=Δ(9^-n)
Δ(a)=differences of a
n≥0
5 operations
Power

Sequence igbmxorjjshkp

-0.875, -0.109375, -0.013671875, -0.0017089844, -0.000213623, -0.0000267029, -0.0000033379, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, more...

decimal, strictly-monotonic, -

a(n)=Δ(8^-n)
Δ(a)=differences of a
n≥0
5 operations
Power
a(n)=Δ(a(n-1)/8)
a(0)=1
Δ(a)=differences of a
n≥0
4 operations
Recursive

Sequence bk5bv10cygxw

-0.8584073464, 0.8584073464, -0.8584073464, 0.8584073464, -0.8584073464, 0.8584073464, -0.8584073464, 0.8584073464, -0.8584073464, 0.8584073464, -0.8584073464, 0.8584073464, -0.8584073464, 0.8584073464, -0.8584073464, 0.8584073464, -0.8584073464, 0.8584073464, -0.8584073464, 0.8584073464, -0.8584073464, 0.8584073464, -0.8584073464, 0.8584073464, -0.8584073464, more...

decimal, periodic-2, non-monotonic, +-

a(n)=Δ(π-a(n-1))
a(0)=2
π=3.141...
Δ(a)=differences of a
n≥0
4 operations
Recursive

Sequence oe2ooh5fmd3wf

-0.8571428571, -0.1224489796, -0.0174927114, -0.0024989588, -0.0003569941, -0.0000509992, -0.0000072856, -0.0000010408, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, more...

decimal, strictly-monotonic, -

a(n)=Δ(7^-n)
Δ(a)=differences of a
n≥0
5 operations
Power
a(n)=Δ(a(n-1)/7)
a(0)=1
Δ(a)=differences of a
n≥0
4 operations
Recursive

Sequence sr5lebst4rb3f

-0.8333333333, -0.1388888889, -0.0231481481, -0.0038580247, -0.0006430041, -0.0001071674, -0.0000178612, -0.0000029769, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, more...

decimal, strictly-monotonic, -

a(n)=Δ(6^-n)
Δ(a)=differences of a
n≥0
5 operations
Power
a(n)=Δ(a(n-1)/6)
a(0)=1
Δ(a)=differences of a
n≥0
4 operations
Recursive

Sequence lv2dpx5drygnm

-0.8, -0.16, -0.032, -0.0064, -0.00128, -0.000256, -0.0000512, -0.00001024, -0.000002048, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, more...

decimal, strictly-monotonic, -

a(n)=Δ(5^-n)
Δ(a)=differences of a
n≥0
5 operations
Power
a(n)=Δ(a(n-1)/5)
a(0)=1
Δ(a)=differences of a
n≥0
4 operations
Recursive

Sequence xuqhq3sablxpl

-0.75, -0.1875, -0.046875, -0.01171875, -0.0029296875, -0.0007324219, -0.0001831055, -0.0000457764, -0.0000114441, -0.000002861, -0.0000007153, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, more...

decimal, strictly-monotonic, -

a(n)=Δ(a(n-1)/4)
a(0)=1
Δ(a)=differences of a
n≥0
4 operations
Recursive
a(n)=Δ(4^-n)
Δ(a)=differences of a
n≥0
5 operations
Power

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