A327738 - cp's OEIS frontend

A327738 Expansion of 1 / (1 - Sum_{i>=1, j>=1} x^(i*j^2)).

n	a(n)
0	1
1	1
2	2
3	4
4	9
5	18
6	37
7	76
8	158
9	326
10	672
11	1386
12	2862
13	5906
14	12187
15	25148
16	51900
17	107103
18	221023
19	456110
20	941256
21	1942423
22	4008481
23	8272094
24	17070712
25	35227975
26	72698206
27	150023632
28	309596255
29	638898274
30	1318462339
31	2720844607
32	5614870612
33	11587126980

[1, 1, 2, 4, 9, 18, 37, 76, 158, 326, 672, 1386, 2862, 5906, 12187, 25148, 51900, 107103, 221023, 456110, 941256, 1942423, 4008481, 8272094, 17070712, 35227975, 72698206, 150023632, 309596255, 638898274, 1318462339, 2720844607, 5614870612, 11587126980]

cp's OEIS Frontend

A327738 Expansion of 1 / (1 - Sum_{i>=1, j>=1} x^(i*j^2)).

Table of values

List of values