A263345 - cp's OEIS frontend

A263345 Expansion of Product_{k>=1} ((1 + x^k)/(1 + x^(3*k)))^k.

n	a(n)
0	1
1	1
2	2
3	4
4	7
5	14
6	22
7	40
8	65
9	107
10	176
11	282
12	448
13	705
14	1101
15	1701
16	2611
17	3977
18	6021
19	9048
20	13527
21	20102
22	29720
23	43712
24	63997
25	93259
26	135317
27	195539
28	281440
29	403559
30	576568
31	820888
32	1164826
33	1647583
34	2323169
35	3266041
36	4578305
37	6399990
38	8922389
39	12406535

[1, 1, 2, 4, 7, 14, 22, 40, 65, 107, 176, 282, 448, 705, 1101, 1701, 2611, 3977, 6021, 9048, 13527, 20102, 29720, 43712, 63997, 93259, 135317, 195539, 281440, 403559, 576568, 820888, 1164826, 1647583, 2323169, 3266041, 4578305, 6399990, 8922389, 12406535]

cp's OEIS Frontend

A263345 Expansion of Product_{k>=1} ((1 + x^k)/(1 + x^(3*k)))^k.

Table of values

List of values