A263346 - cp's OEIS frontend

A263346 Expansion of Product_{k>=1} ((1 - x^(3*k))/(1 - x^k))^k.

n	a(n)
0	1
1	1
2	3
3	5
4	12
5	21
6	40
7	71
8	130
9	221
10	387
11	648
12	1095
13	1800
14	2964
15	4792
16	7730
17	12301
18	19510
19	30619
20	47859
21	74179
22	114469
23	175427
24	267684
25	406039
26	613325
27	921671
28	1379500
29	2055313
30	3050652
31	4509385
32	6641966
33	9746452
34	14254242
35	20775255
36	30184451
37	43715711

[1, 1, 3, 5, 12, 21, 40, 71, 130, 221, 387, 648, 1095, 1800, 2964, 4792, 7730, 12301, 19510, 30619, 47859, 74179, 114469, 175427, 267684, 406039, 613325, 921671, 1379500, 2055313, 3050652, 4509385, 6641966, 9746452, 14254242, 20775255, 30184451, 43715711]

cp's OEIS Frontend

A263346 Expansion of Product_{k>=1} ((1 - x^(3*k))/(1 - x^k))^k.

Table of values

List of values