A258347 - cp's OEIS frontend

A258347 Expansion of Product_{k>=1} 1/(1-x^k)^(k*(k+1)).

n	a(n)
0	1
1	2
2	9
3	28
4	88
5	250
6	708
7	1894
8	4988
9	12718
10	31839
11	77952
12	187771
13	444526
14	1037522
15	2387670
16	5426996
17	12188774
18	27079379
19	59541078
20	129663636
21	279801102
22	598620511
23	1270300142
24	2674874760
25	5591124784
26	11605082733
27	23926811840
28	49016020317
29	99798382290

[1, 2, 9, 28, 88, 250, 708, 1894, 4988, 12718, 31839, 77952, 187771, 444526, 1037522, 2387670, 5426996, 12188774, 27079379, 59541078, 129663636, 279801102, 598620511, 1270300142, 2674874760, 5591124784, 11605082733, 23926811840, 49016020317, 99798382290]

cp's OEIS Frontend

A258347 Expansion of Product_{k>=1} 1/(1-x^k)^(k*(k+1)).

Table of values

List of values