A369786 - cp's OEIS frontend

A369786 Number of different coefficient values in expansion of Product_{k=1..n} (1+x^(k^2)).

n	a(n)
0	1
1	1
2	2
3	2
4	2
5	3
6	3
7	4
8	6
9	7
10	10
11	15
12	21
13	33
14	50
15	83
16	126
17	208
18	321
19	498
20	688
21	934
22	1208
23	1496
24	1798
25	2140
26	2482
27	2862
28	3268
29	3690
30	4145
31	4619
32	5142
33	5687
34	6265
35	6880
36	7530
37	8214
38	8937
39	9700
40	10489
41	11339
42	12218
43	13142
44	14112
45	15123
46	16181
47	17288
48	18438
49	19639
50	20888

[1, 1, 2, 2, 2, 3, 3, 4, 6, 7, 10, 15, 21, 33, 50, 83, 126, 208, 321, 498, 688, 934, 1208, 1496, 1798, 2140, 2482, 2862, 3268, 3690, 4145, 4619, 5142, 5687, 6265, 6880, 7530, 8214, 8937, 9700, 10489, 11339, 12218, 13142, 14112, 15123, 16181, 17288, 18438, 19639, 20888]

cp's OEIS Frontend

A369786 Number of different coefficient values in expansion of Product_{k=1..n} (1+x^(k^2)).

Table of values

List of values