A318579 - cp's OEIS frontend

A318579 Expansion of Product_{i>=1, j>=1} ((1 + x^(ij))/(1 - x^(ij)))^(i*j).

n	a(n)
0	1
1	2
2	10
3	30
4	98
5	270
6	786
7	2046
8	5418
9	13556
10	33726
11	81002
12	192902
13	447562
14	1027990
15	2316750
16	5165398
17	11345298
18	24668952
19	52972902
20	112688802
21	237193354
22	494933514
23	1023238806
24	2098662698
25	4269141516
26	8620916966
27	17280687472
28	34405835066
29	68044209950
30	133732805458

[1, 2, 10, 30, 98, 270, 786, 2046, 5418, 13556, 33726, 81002, 192902, 447562, 1027990, 2316750, 5165398, 11345298, 24668952, 52972902, 112688802, 237193354, 494933514, 1023238806, 2098662698, 4269141516, 8620916966, 17280687472, 34405835066, 68044209950, 133732805458]

cp's OEIS Frontend

A318579 Expansion of Product_{i>=1, j>=1} ((1 + x^(ij))/(1 - x^(ij)))^(i*j).

Table of values

List of values

cp's OEIS Frontend

A318579 Expansion of Product_{i>=1, j>=1} ((1 + x^(i*j))/(1 - x^(i*j)))^(i*j).

Table of values

List of values

A318579 Expansion of Product_{i>=1, j>=1} ((1 + x^(ij))/(1 - x^(ij)))^(i*j).