A261611 - cp's OEIS frontend

A261611 Expansion of Product_{k>=0} (1 + x^(4k+1))/(1 - x^(4k+1)).

n	a(n)
0	1
1	2
2	2
3	2
4	2
5	4
6	6
7	6
8	6
9	8
10	12
11	14
12	14
13	16
14	22
15	28
16	30
17	32
18	40
19	50
20	56
21	60
22	70
23	86
24	98
25	106
26	120
27	144
28	166
29	180
30	200
31	234
32	270
33	296
34	324
35	372
36	428
37	472
38	514
39	580
40	664
41	736
42	800
43	890
44	1010
45	1124
46	1222
47	1346
48	1514
49	1684
50	1834
51	2008
52	2240
53	2488
54	2712
55	2956

[1, 2, 2, 2, 2, 4, 6, 6, 6, 8, 12, 14, 14, 16, 22, 28, 30, 32, 40, 50, 56, 60, 70, 86, 98, 106, 120, 144, 166, 180, 200, 234, 270, 296, 324, 372, 428, 472, 514, 580, 664, 736, 800, 890, 1010, 1124, 1222, 1346, 1514, 1684, 1834, 2008, 2240, 2488, 2712, 2956]

cp's OEIS Frontend

A261611 Expansion of Product_{k>=0} (1 + x^(4k+1))/(1 - x^(4k+1)).

Table of values

List of values

cp's OEIS Frontend

A261611 Expansion of Product_{k>=0} (1 + x^(4*k+1))/(1 - x^(4*k+1)).

Table of values

List of values

A261611 Expansion of Product_{k>=0} (1 + x^(4k+1))/(1 - x^(4k+1)).