A297322 - cp's OEIS frontend

A297322 a(n) = [x^n] Product_{k>=1} (1 + k*x^k)^n.

n	a(n)
0	1
1	1
2	5
3	28
4	137
5	726
6	3896
7	21071
8	115089
9	633007
10	3500740
11	19448573
12	108458924
13	606787572
14	3404112479
15	19142919543
16	107874784017
17	609021410570
18	3443952349385
19	19503777943838
20	110599636109572
21	627924447630011
22	3568885868192419
23	20304321490356084

[1, 1, 5, 28, 137, 726, 3896, 21071, 115089, 633007, 3500740, 19448573, 108458924, 606787572, 3404112479, 19142919543, 107874784017, 609021410570, 3443952349385, 19503777943838, 110599636109572, 627924447630011, 3568885868192419, 20304321490356084]

cp's OEIS Frontend

A297322 a(n) = [x^n] Product_{k>=1} (1 + k*x^k)^n.

Table of values

List of values