A307571 - cp's OEIS frontend

A307571 Expansion of Product_{j>=1} (1 + x^jProduct_{k>=1} (1 + x^k)^(kj))^j.

n	a(n)
0	1
1	1
2	3
3	11
4	38
5	129
6	436
7	1445
8	4764
9	15583
10	50667
11	163890
12	527620
13	1691368
14	5400754
15	17183173
16	54487190
17	172235992
18	542844404
19	1706169816
20	5348478123
21	16724698483
22	52174714116
23	162399459964
24	504402061533
25	1563430065203
26	4836462927829
27	14933470162894
28	46026742326000
29	141614337715832

[1, 1, 3, 11, 38, 129, 436, 1445, 4764, 15583, 50667, 163890, 527620, 1691368, 5400754, 17183173, 54487190, 172235992, 542844404, 1706169816, 5348478123, 16724698483, 52174714116, 162399459964, 504402061533, 1563430065203, 4836462927829, 14933470162894, 46026742326000, 141614337715832]

cp's OEIS Frontend

A307571 Expansion of Product_{j>=1} (1 + x^jProduct_{k>=1} (1 + x^k)^(kj))^j.

Table of values

List of values

cp's OEIS Frontend

A307571 Expansion of Product_{j>=1} (1 + x^j*Product_{k>=1} (1 + x^k)^(k*j))^j.

Table of values

List of values

A307571 Expansion of Product_{j>=1} (1 + x^jProduct_{k>=1} (1 + x^k)^(kj))^j.