A320244 - cp's OEIS frontend

A320244 G.f.: Product_{k>=1, j>=1} (1 + x^(kj))^2 / (1 - x^(kj)).

n	a(n)
0	1
1	3
2	10
3	28
4	72
5	172
6	397
7	867
8	1840
9	3783
10	7580
11	14829
12	28454
13	53540
14	99119
15	180676
16	324758
17	576145
18	1010051
19	1750782
20	3003386
21	5101769
22	8586891
23	14327582
24	23711567
25	38937304
26	63471475
27	102741924
28	165204561
29	263956121
30	419183458
31	661833319
32	1039140705

[1, 3, 10, 28, 72, 172, 397, 867, 1840, 3783, 7580, 14829, 28454, 53540, 99119, 180676, 324758, 576145, 1010051, 1750782, 3003386, 5101769, 8586891, 14327582, 23711567, 38937304, 63471475, 102741924, 165204561, 263956121, 419183458, 661833319, 1039140705]

cp's OEIS Frontend

A320244 G.f.: Product_{k>=1, j>=1} (1 + x^(kj))^2 / (1 - x^(kj)).

Table of values

List of values

cp's OEIS Frontend

A320244 G.f.: Product_{k>=1, j>=1} (1 + x^(k*j))^2 / (1 - x^(k*j)).

Table of values

List of values

A320244 G.f.: Product_{k>=1, j>=1} (1 + x^(kj))^2 / (1 - x^(kj)).