A207137 - cp's OEIS frontend

A207137 G.f.: exp( Sum_{n>=1} x^n/n * Sum_{k=0..n} binomial(n^2, k(n-k))x^k ).

n	a(n)
0	1
1	1
2	2
3	4
4	17
5	171
6	3171
7	101741
8	7181615
9	1274607729
10	428568152553
11	223160743256395
12	185627109707405932
13	320952534083059792786
14	1367454166673309618606950
15	11078799748881429582280609036
16	137939599816546528357634500253053
17	2679390013936303204526656964298150849

[1, 1, 2, 4, 17, 171, 3171, 101741, 7181615, 1274607729, 428568152553, 223160743256395, 185627109707405932, 320952534083059792786, 1367454166673309618606950, 11078799748881429582280609036, 137939599816546528357634500253053, 2679390013936303204526656964298150849]

cp's OEIS Frontend

A207137 G.f.: exp( Sum_{n>=1} x^n/n * Sum_{k=0..n} binomial(n^2, k(n-k))x^k ).

Table of values

List of values

cp's OEIS Frontend

A207137 G.f.: exp( Sum_{n>=1} x^n/n * Sum_{k=0..n} binomial(n^2, k*(n-k))*x^k ).

Table of values

List of values

A207137 G.f.: exp( Sum_{n>=1} x^n/n * Sum_{k=0..n} binomial(n^2, k(n-k))x^k ).