A292304 - cp's OEIS frontend

A292304 a(n) = [x^n] Product_{k>=1} (1 + n^2*x^k).

n	a(n)
0	1
1	1
2	4
3	90
4	272
5	1275
6	49284
7	124901
8	536640
9	1620648
10	104040100
11	223290012
12	880969104
13	2485978170
14	7454471332
15	592164776475
16	1138401673472
17	4109108002310
18	10877348160900
19	30962024560494
20	72270337440400
21	7523649856001916
22	13202150810778116
23	44577985082575400

[1, 1, 4, 90, 272, 1275, 49284, 124901, 536640, 1620648, 104040100, 223290012, 880969104, 2485978170, 7454471332, 592164776475, 1138401673472, 4109108002310, 10877348160900, 30962024560494, 72270337440400, 7523649856001916, 13202150810778116, 44577985082575400]

cp's OEIS Frontend

A292304 a(n) = [x^n] Product_{k>=1} (1 + n^2*x^k).

Table of values

List of values