A278680 - cp's OEIS frontend

A278680 Expansion of Product_{n>=1} (1 - x^(5*n))/(1 - x^n)^4 in powers of x.

n	a(n)
0	1
1	4
2	14
3	40
4	105
5	251
6	570
7	1226
8	2540
9	5075
10	9855
11	18630
12	34439
13	62340
14	110805
15	193624
16	333235
17	565415
18	947040
19	1567130
20	2564425
21	4152535
22	6658711
23	10579380
24	16663755
25	26033200
26	40357641
27	62106290
28	94912385
29	144088840
30	217368655
31	325945320
32	485950150
33	720515475

[1, 4, 14, 40, 105, 251, 570, 1226, 2540, 5075, 9855, 18630, 34439, 62340, 110805, 193624, 333235, 565415, 947040, 1567130, 2564425, 4152535, 6658711, 10579380, 16663755, 26033200, 40357641, 62106290, 94912385, 144088840, 217368655, 325945320, 485950150, 720515475]

cp's OEIS Frontend

A278680 Expansion of Product_{n>=1} (1 - x^(5*n))/(1 - x^n)^4 in powers of x.

Table of values

List of values