A293254 - cp's OEIS frontend

A293254 Expansion of Product_{k>=1} (1 + x^k - x^(k^2)).

n	a(n)
0	1
1	0
2	1
3	1
4	0
5	2
6	2
7	2
8	2
9	3
10	4
11	4
12	6
13	7
14	8
15	9
16	9
17	14
18	15
19	17
20	22
21	23
22	27
23	33
24	36
25	43
26	48
27	56
28	64
29	72
30	84
31	94
32	109
33	124
34	136
35	157
36	178
37	197
38	225
39	253
40	286
41	319
42	358
43	401
44	451
45	500
46	559
47	628
48	694
49	774
50	863
51	958
52	1066
53	1181
54	1310
55	1449
56	1605
57	1778
58	1957
59	2170

[1, 0, 1, 1, 0, 2, 2, 2, 2, 3, 4, 4, 6, 7, 8, 9, 9, 14, 15, 17, 22, 23, 27, 33, 36, 43, 48, 56, 64, 72, 84, 94, 109, 124, 136, 157, 178, 197, 225, 253, 286, 319, 358, 401, 451, 500, 559, 628, 694, 774, 863, 958, 1066, 1181, 1310, 1449, 1605, 1778, 1957, 2170]

cp's OEIS Frontend

A293254 Expansion of Product_{k>=1} (1 + x^k - x^(k^2)).

Table of values

List of values