A261998 - cp's OEIS frontend

A261998 Expansion of Product_{k>=1} (1-x^k)*(1+x^k)^4.

n	a(n)
0	1
1	3
2	5
3	10
4	17
5	26
6	43
7	65
8	95
9	140
10	201
11	283
12	395
13	545
14	740
15	1002
16	1343
17	1780
18	2350
19	3077
20	4002
21	5183
22	6670
23	8535
24	10880
25	13801
26	17426
27	21925
28	27475
29	34297
30	42677
31	52926
32	65415
33	80625
34	99077
35	121403
36	148386
37	180890
38	219960
39	266857
40	323002
41	390086
42	470125

[1, 3, 5, 10, 17, 26, 43, 65, 95, 140, 201, 283, 395, 545, 740, 1002, 1343, 1780, 2350, 3077, 4002, 5183, 6670, 8535, 10880, 13801, 17426, 21925, 27475, 34297, 42677, 52926, 65415, 80625, 99077, 121403, 148386, 180890, 219960, 266857, 323002, 390086, 470125]

cp's OEIS Frontend

A261998 Expansion of Product_{k>=1} (1-x^k)*(1+x^k)^4.

Table of values

List of values