A280224 - cp's OEIS frontend

A280224 G.f.: Product_{k>=1} (1 + 2*x^(k^2)) / (1-x^k).

n	a(n)
0	1
1	3
2	4
3	7
4	13
5	23
6	33
7	51
8	74
9	110
10	158
11	222
12	307
13	429
14	587
15	792
16	1065
17	1423
18	1877
19	2470
20	3227
21	4196
22	5416
23	6963
24	8899
25	11344
26	14384
27	18158
28	22840
29	28647
30	35786
31	44552
32	55295
33	68423
34	84422
35	103879
36	127457
37	156009
38	190481
39	232007
40	281934
41	341879
42	413640

[1, 3, 4, 7, 13, 23, 33, 51, 74, 110, 158, 222, 307, 429, 587, 792, 1065, 1423, 1877, 2470, 3227, 4196, 5416, 6963, 8899, 11344, 14384, 18158, 22840, 28647, 35786, 44552, 55295, 68423, 84422, 103879, 127457, 156009, 190481, 232007, 281934, 341879, 413640]

cp's OEIS Frontend

A280224 G.f.: Product_{k>=1} (1 + 2*x^(k^2)) / (1-x^k).

Table of values

List of values