A319455 - cp's OEIS frontend

A319455 Expansion of Product_{k>=1} 1/((1 - x^k)(1 - x^(2k)))^2.

n	a(n)
0	1
1	2
2	7
3	14
4	35
5	66
6	140
7	252
8	485
9	840
10	1512
11	2534
12	4347
13	7084
14	11705
15	18622
16	29862
17	46522
18	72779
19	111310
20	170534
21	256586
22	386101
23	572488
24	848050
25	1240974
26	1812979
27	2621486
28	3782669
29	5410360
30	7720237
31	10932740
32	15443120
33	21669546
34	30327570
35	42196022
36	58555543
37	80832850

[1, 2, 7, 14, 35, 66, 140, 252, 485, 840, 1512, 2534, 4347, 7084, 11705, 18622, 29862, 46522, 72779, 111310, 170534, 256586, 386101, 572488, 848050, 1240974, 1812979, 2621486, 3782669, 5410360, 7720237, 10932740, 15443120, 21669546, 30327570, 42196022, 58555543, 80832850]

cp's OEIS Frontend

A319455 Expansion of Product_{k>=1} 1/((1 - x^k)(1 - x^(2k)))^2.

Table of values

List of values

cp's OEIS Frontend

A319455 Expansion of Product_{k>=1} 1/((1 - x^k)*(1 - x^(2*k)))^2.

Table of values

List of values

A319455 Expansion of Product_{k>=1} 1/((1 - x^k)(1 - x^(2k)))^2.