A207654 - cp's OEIS frontend

A207654 G.f.: Sum_{n>=0} Product_{k=1..n} ((1+x)^(2k-1) - 1)/(1 - x^(2k-1)).

n	a(n)
0	1
1	1
2	4
3	22
4	173
5	1816
6	23659
7	367573
8	6622465
9	135637477
10	3111148862
11	78984029782
12	2198423489832
13	66562555228478
14	2177861372888738
15	76571625673934064
16	2878937040339348981
17	115260759545001030638
18	4895471242828376133806
19	219853190410155476470763

[1, 1, 4, 22, 173, 1816, 23659, 367573, 6622465, 135637477, 3111148862, 78984029782, 2198423489832, 66562555228478, 2177861372888738, 76571625673934064, 2878937040339348981, 115260759545001030638, 4895471242828376133806, 219853190410155476470763]

cp's OEIS Frontend

A207654 G.f.: Sum_{n>=0} Product_{k=1..n} ((1+x)^(2k-1) - 1)/(1 - x^(2k-1)).

Table of values

List of values

cp's OEIS Frontend

A207654 G.f.: Sum_{n>=0} Product_{k=1..n} ((1+x)^(2*k-1) - 1)/(1 - x^(2*k-1)).

Table of values

List of values

A207654 G.f.: Sum_{n>=0} Product_{k=1..n} ((1+x)^(2k-1) - 1)/(1 - x^(2k-1)).