A306911 - cp's OEIS frontend

A306911 Expansion of Sum_{k>=0} x^(k^2) * Product_{j=1..k} (1 + x^j)^j.

n	a(n)
0	1
1	1
2	1
3	0
4	1
5	1
6	2
7	2
8	1
9	2
10	1
11	2
12	5
13	4
14	7
15	9
16	7
17	10
18	9
19	9
20	13
21	13
22	18
23	27
24	31
25	42
26	53
27	61
28	71
29	83
30	95
31	98
32	115
33	131
34	147
35	176
36	207
37	258
38	313
39	395
40	481
41	581
42	721
43	848
44	1014
45	1179
46	1367
47	1586
48	1804
49	2064
50	2338
51	2698
52	3083
53	3559
54	4142
55	4819
56	5732
57	6768
58	8036
59	9582
60	11426

[1, 1, 1, 0, 1, 1, 2, 2, 1, 2, 1, 2, 5, 4, 7, 9, 7, 10, 9, 9, 13, 13, 18, 27, 31, 42, 53, 61, 71, 83, 95, 98, 115, 131, 147, 176, 207, 258, 313, 395, 481, 581, 721, 848, 1014, 1179, 1367, 1586, 1804, 2064, 2338, 2698, 3083, 3559, 4142, 4819, 5732, 6768, 8036, 9582, 11426]

cp's OEIS Frontend

A306911 Expansion of Sum_{k>=0} x^(k^2) * Product_{j=1..k} (1 + x^j)^j.

Table of values

List of values