A305321 - cp's OEIS frontend

A305321 Expansion of Product_{k>=1} (1 + x^sigma(k)).

n	a(n)
0	1
1	1
2	0
3	1
4	2
5	1
6	1
7	3
8	3
9	2
10	3
11	4
12	5
13	6
14	6
15	8
16	9
17	8
18	12
19	15
20	14
21	17
22	21
23	20
24	24
25	31
26	30
27	34
28	42
29	41
30	46
31	59
32	63
33	67
34	76
35	83
36	94
37	104
38	112
39	131
40	144
41	144
42	170
43	198
44	201
45	226
46	261
47	268
48	291
49	337
50	361
51	392
52	437
53	465
54	511
55	567
56	607
57	673
58	736
59	775
60	861
61	946
62	1000

[1, 1, 0, 1, 2, 1, 1, 3, 3, 2, 3, 4, 5, 6, 6, 8, 9, 8, 12, 15, 14, 17, 21, 20, 24, 31, 30, 34, 42, 41, 46, 59, 63, 67, 76, 83, 94, 104, 112, 131, 144, 144, 170, 198, 201, 226, 261, 268, 291, 337, 361, 392, 437, 465, 511, 567, 607, 673, 736, 775, 861, 946, 1000]

cp's OEIS Frontend

A305321 Expansion of Product_{k>=1} (1 + x^sigma(k)).

Table of values

List of values