A280540 - cp's OEIS frontend

A280540 G.f.: Product_{i>=1, j>=1} 1/(1 - x^(ij))^(ij).

n	a(n)
0	1
1	1
2	5
3	11
4	33
5	67
6	180
7	366
8	871
9	1782
10	3927
11	7885
12	16637
13	32763
14	66469
15	128938
16	253871
17	484034
18	930959
19	1747304
20	3292730
21	6092664
22	11282364
23	20596790
24	37568653
25	67736175
26	121886533
27	217261372
28	386216073
29	681119439
30	1197524035
31	2091091902
32	3639519280

[1, 1, 5, 11, 33, 67, 180, 366, 871, 1782, 3927, 7885, 16637, 32763, 66469, 128938, 253871, 484034, 930959, 1747304, 3292730, 6092664, 11282364, 20596790, 37568653, 67736175, 121886533, 217261372, 386216073, 681119439, 1197524035, 2091091902, 3639519280]

cp's OEIS Frontend

A280540 G.f.: Product_{i>=1, j>=1} 1/(1 - x^(ij))^(ij).

Table of values

List of values

cp's OEIS Frontend

A280540 G.f.: Product_{i>=1, j>=1} 1/(1 - x^(i*j))^(i*j).

Table of values

List of values

A280540 G.f.: Product_{i>=1, j>=1} 1/(1 - x^(ij))^(ij).