A318977 - cp's OEIS frontend

A318977 Expansion of e.g.f. Product_{k>=1} ((1 + x^k)/(1 - x^k))^(tau(k)/k), where tau is A000005.

n	a(n)
0	1
1	2
2	8
3	44
4	292
5	2296
6	21472
7	221168
8	2554544
9	32617952
10	452957056
11	6788855872
12	110098330048
13	1900192498304
14	34971968379392
15	683452436531456
16	14097619892177152
17	306168410773570048
18	6998327049216231424
19	167369475021548506112
20	4187842602663179396096

[1, 2, 8, 44, 292, 2296, 21472, 221168, 2554544, 32617952, 452957056, 6788855872, 110098330048, 1900192498304, 34971968379392, 683452436531456, 14097619892177152, 306168410773570048, 6998327049216231424, 167369475021548506112, 4187842602663179396096]

cp's OEIS Frontend

A318977 Expansion of e.g.f. Product_{k>=1} ((1 + x^k)/(1 - x^k))^(tau(k)/k), where tau is A000005.

Table of values

List of values