A317019 - cp's OEIS frontend

A317019 Expansion of Product_{k>=1} 1/(1 - x^k)^(k*binomial(k+2,3)).

n	a(n)
0	1
1	1
2	9
3	39
4	155
5	570
6	2131
7	7599
8	26667
9	90996
10	305144
11	1004173
12	3254123
13	10385884
14	32704819
15	101678860
16	312435675
17	949498206
18	2855953018
19	8507079361
20	25108844890
21	73468004480
22	213201630328
23	613871526178
24	1754365814430
25	4978113020152
26	14029639217532
27	39281646364737

[1, 1, 9, 39, 155, 570, 2131, 7599, 26667, 90996, 305144, 1004173, 3254123, 10385884, 32704819, 101678860, 312435675, 949498206, 2855953018, 8507079361, 25108844890, 73468004480, 213201630328, 613871526178, 1754365814430, 4978113020152, 14029639217532, 39281646364737]

cp's OEIS Frontend

A317019 Expansion of Product_{k>=1} 1/(1 - x^k)^(k*binomial(k+2,3)).

Table of values

List of values