A266650 - cp's OEIS frontend

A266650 Expansion of Product_{k>=1} (1 + x^k - x^(3*k)) / (1 - x^k).

n	a(n)
0	1
1	2
2	4
3	7
4	13
5	21
6	34
7	53
8	82
9	123
10	181
11	263
12	379
13	537
14	754
15	1047
16	1444
17	1972
18	2675
19	3601
20	4820
21	6408
22	8473
23	11141
24	14580
25	18985
26	24611
27	31765
28	40839
29	52294
30	66719
31	84819
32	107474
33	135731
34	170892
35	214518
36	268524
37	335190
38	417308
39	518212
40	641948
41	793324
42	978157

[1, 2, 4, 7, 13, 21, 34, 53, 82, 123, 181, 263, 379, 537, 754, 1047, 1444, 1972, 2675, 3601, 4820, 6408, 8473, 11141, 14580, 18985, 24611, 31765, 40839, 52294, 66719, 84819, 107474, 135731, 170892, 214518, 268524, 335190, 417308, 518212, 641948, 793324, 978157]

cp's OEIS Frontend

A266650 Expansion of Product_{k>=1} (1 + x^k - x^(3*k)) / (1 - x^k).

Table of values

List of values