A302550 - cp's OEIS frontend

A302550 Expansion of Sum_{k>=1} (-1 + Product_{j>=1} (1 + x^(k*j))^j).

n	a(n)
1	1
2	3
3	6
4	11
5	17
6	36
7	50
8	94
9	148
10	254
11	386
12	671
13	1005
14	1651
15	2543
16	4034
17	6112
18	9599
19	14410
20	22178
21	33189
22	50196
23	74485
24	111591
25	164149
26	242967
27	355317
28	520817
29	755895
30	1099219
31	1584520
32	2285960
33	3275667
34	4691845
35	6682765
36	9512213
37	13471240
38	19059192
39	26851931
40	37778822

[1, 3, 6, 11, 17, 36, 50, 94, 148, 254, 386, 671, 1005, 1651, 2543, 4034, 6112, 9599, 14410, 22178, 33189, 50196, 74485, 111591, 164149, 242967, 355317, 520817, 755895, 1099219, 1584520, 2285960, 3275667, 4691845, 6682765, 9512213, 13471240, 19059192, 26851931, 37778822]

cp's OEIS Frontend

A302550 Expansion of Sum_{k>=1} (-1 + Product_{j>=1} (1 + x^(k*j))^j).

Table of values

List of values