A307321 - cp's OEIS frontend

A307321 Expansion of Product_{j>=1} 1/(1 - (-1 + Product_{k>=1} 1/(1 - x^k)^k)^j)^j.

n	a(n)
0	1
1	1
2	6
3	30
4	143
5	660
6	3000
7	13448
8	59696
9	262788
10	1148738
11	4989908
12	21551733
13	92596511
14	395921737
15	1685304092
16	7143861196
17	30163965903
18	126895681419
19	531986033218
20	2222961809367
21	9260148591001
22	38461580964389
23	159302487751844
24	658054630483936
25	2711429650817356

[1, 1, 6, 30, 143, 660, 3000, 13448, 59696, 262788, 1148738, 4989908, 21551733, 92596511, 395921737, 1685304092, 7143861196, 30163965903, 126895681419, 531986033218, 2222961809367, 9260148591001, 38461580964389, 159302487751844, 658054630483936, 2711429650817356]

cp's OEIS Frontend

A307321 Expansion of Product_{j>=1} 1/(1 - (-1 + Product_{k>=1} 1/(1 - x^k)^k)^j)^j.

Table of values

List of values