A318771 - cp's OEIS frontend

A318771 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	1
4	2
5	2
6	4
7	4
8	7
9	8
10	12
11	14
12	22
13	25
14	37
15	47
16	64
17	81
18	113
19	140
20	191
21	243
22	319
23	408
24	540
25	677
26	889
27	1132
28	1462
29	1855
30	2404
31	3034
32	3909
33	4946
34	6325
35	7997
36	10202
37	12840
38	16328
39	20549
40	25989
41	32627
42	41180
43	51577
44	64872
45	81128
46	101729
47	127016
48	158913
49	197981
50	247163
51	307523
52	383019

[1, 1, 1, 1, 2, 2, 4, 4, 7, 8, 12, 14, 22, 25, 37, 47, 64, 81, 113, 140, 191, 243, 319, 408, 540, 677, 889, 1132, 1462, 1855, 2404, 3034, 3909, 4946, 6325, 7997, 10202, 12840, 16328, 20549, 25989, 32627, 41180, 51577, 64872, 81128, 101729, 127016, 158913, 197981, 247163, 307523, 383019]

cp's OEIS Frontend

A318771 Expansion of Sum_{k>=0} x^(k^2) / Product_{j=1..k} (1 - x^j)^j.

Table of values

List of values