A261389 - cp's OEIS frontend

A261389 Expansion of Product_{k>=1} ((1+x^k)/(1-x^k))^(3*k).

n	a(n)
0	1
1	6
2	30
3	128
4	486
5	1704
6	5604
7	17484
8	52206
9	150118
10	417696
11	1128984
12	2973476
13	7650720
14	19272432
15	47616568
16	115570014
17	275921460
18	648771802
19	1503889488
20	3439990344
21	7770915816
22	17349229908
23	38306180052
24	83694778556
25	181052778078
26	387976101432
27	823939048560

[1, 6, 30, 128, 486, 1704, 5604, 17484, 52206, 150118, 417696, 1128984, 2973476, 7650720, 19272432, 47616568, 115570014, 275921460, 648771802, 1503889488, 3439990344, 7770915816, 17349229908, 38306180052, 83694778556, 181052778078, 387976101432, 823939048560]

cp's OEIS Frontend

A261389 Expansion of Product_{k>=1} ((1+x^k)/(1-x^k))^(3*k).

Table of values

List of values