A261772 - cp's OEIS frontend

A261772 Expansion of Product_{k>=1} (1 + x^k) / (1 + x^(10*k)).

n	a(n)
0	1
1	1
2	1
3	2
4	2
5	3
6	4
7	5
8	6
9	8
10	9
11	11
12	14
13	16
14	20
15	24
16	28
17	33
18	40
19	46
20	54
21	64
22	74
23	86
24	100
25	115
26	133
27	154
28	176
29	202
30	231
31	263
32	300
33	342
34	388
35	440
36	499
37	563
38	636
39	718
40	808
41	909
42	1022
43	1146
44	1284
45	1439
46	1608
47	1797
48	2006
49	2236
50	2490
51	2772
52	3081
53	3422
54	3800
55	4212

[1, 1, 1, 2, 2, 3, 4, 5, 6, 8, 9, 11, 14, 16, 20, 24, 28, 33, 40, 46, 54, 64, 74, 86, 100, 115, 133, 154, 176, 202, 231, 263, 300, 342, 388, 440, 499, 563, 636, 718, 808, 909, 1022, 1146, 1284, 1439, 1608, 1797, 2006, 2236, 2490, 2772, 3081, 3422, 3800, 4212]

cp's OEIS Frontend

A261772 Expansion of Product_{k>=1} (1 + x^k) / (1 + x^(10*k)).

Table of values

List of values