A128195 - cp's OEIS frontend

A128195 a(n) = (2n + 1)(a(n - 1) + 2^n) for n >= 1, a(0) = 1.

n	a(n)
0	1
1	9
2	65
3	511
4	4743
5	52525
6	683657
7	10256775
8	174369527
9	3313030741
10	69573667065
11	1600194389599
12	40004859842375
13	1080131215965309
14	31323805263469097
15	971037963168557815
16	32044252784564570583
17	1121548847459764557925
18	41497307356011298342553
19	1618394986884440655806799

[1, 9, 65, 511, 4743, 52525, 683657, 10256775, 174369527, 3313030741, 69573667065, 1600194389599, 40004859842375, 1080131215965309, 31323805263469097, 971037963168557815, 32044252784564570583, 1121548847459764557925, 41497307356011298342553, 1618394986884440655806799]

cp's OEIS Frontend

A128195 a(n) = (2n + 1)(a(n - 1) + 2^n) for n >= 1, a(0) = 1.

Table of values

List of values

cp's OEIS Frontend

A128195 a(n) = (2*n + 1)*(a(n - 1) + 2^n) for n >= 1, a(0) = 1.

Table of values

List of values

A128195 a(n) = (2n + 1)(a(n - 1) + 2^n) for n >= 1, a(0) = 1.