A380583 - cp's OEIS frontend

A380583 a(n) = [x^n] G(x)^n, where G(x) = Product_{k >= 1} ((1 + x^(2*k))/(1 - x^k))^(k^2).

n	a(n)
0	1
1	1
2	13
3	82
4	665
5	5026
6	40180
7	319677
8	2583401
9	20965150
10	171276238
11	1405008925
12	11571476120
13	95601033542
14	792038546739
15	6577523807332
16	54737967873385
17	456368114019558
18	3811136362823056
19	31873576059000827
20	266919720010452190
21	2237944814420991135
22	18784073017650350445

[1, 1, 13, 82, 665, 5026, 40180, 319677, 2583401, 20965150, 171276238, 1405008925, 11571476120, 95601033542, 792038546739, 6577523807332, 54737967873385, 456368114019558, 3811136362823056, 31873576059000827, 266919720010452190, 2237944814420991135, 18784073017650350445]

cp's OEIS Frontend

A380583 a(n) = [x^n] G(x)^n, where G(x) = Product_{k >= 1} ((1 + x^(2*k))/(1 - x^k))^(k^2).

Table of values

List of values