A373187 - cp's OEIS frontend

A373187 Expansion of Sum_{k>=0} x^(4^k) / (1 - x^(4^k))^4.

n	a(n)
1	1
2	4
3	10
4	21
5	35
6	56
7	84
8	124
9	165
10	220
11	286
12	374
13	455
14	560
15	680
16	837
17	969
18	1140
19	1330
20	1575
21	1771
22	2024
23	2300
24	2656
25	2925
26	3276
27	3654
28	4144
29	4495
30	4960
31	5456
32	6108
33	6545
34	7140
35	7770
36	8601
37	9139
38	9880
39	10660
40	11700
41	12341
42	13244
43	14190
44	15466
45	16215
46	17296
47	18424

[1, 4, 10, 21, 35, 56, 84, 124, 165, 220, 286, 374, 455, 560, 680, 837, 969, 1140, 1330, 1575, 1771, 2024, 2300, 2656, 2925, 3276, 3654, 4144, 4495, 4960, 5456, 6108, 6545, 7140, 7770, 8601, 9139, 9880, 10660, 11700, 12341, 13244, 14190, 15466, 16215, 17296, 18424]

cp's OEIS Frontend

A373187 Expansion of Sum_{k>=0} x^(4^k) / (1 - x^(4^k))^4.

Table of values

List of values