A305631 - cp's OEIS frontend

A305631 Expansion of Product_{r not a perfect power} 1/(1 - x^r).

n	a(n)
0	1
1	0
2	1
3	1
4	1
5	2
6	3
7	3
8	4
9	5
10	7
11	8
12	12
13	13
14	17
15	21
16	25
17	32
18	39
19	46
20	58
21	68
22	83
23	99
24	121
25	141
26	171
27	201
28	239
29	282
30	336
31	391
32	463
33	541
34	635
35	741
36	868
37	1005
38	1174
39	1359
40	1580
41	1826
42	2115
43	2436
44	2814
45	3237
46	3726
47	4276
48	4914
49	5618
50	6445
51	7359
52	8414
53	9594
54	10947
55	12453

[1, 0, 1, 1, 1, 2, 3, 3, 4, 5, 7, 8, 12, 13, 17, 21, 25, 32, 39, 46, 58, 68, 83, 99, 121, 141, 171, 201, 239, 282, 336, 391, 463, 541, 635, 741, 868, 1005, 1174, 1359, 1580, 1826, 2115, 2436, 2814, 3237, 3726, 4276, 4914, 5618, 6445, 7359, 8414, 9594, 10947, 12453]

cp's OEIS Frontend

A305631 Expansion of Product_{r not a perfect power} 1/(1 - x^r).

Table of values

List of values