A306207 - cp's OEIS frontend

A306207 a(n) = Sum_{k=0..n} (n^2)!/((n^2-nk)!k!^n).

n	a(n)
0	1
1	2
2	19
3	9745
4	768211081
5	17406784944114721
6	179762725526880242306609281
7	1230064011299573560897489169488350806401
8	7660929590740297929124296619236388608530015362840364161

[1, 2, 19, 9745, 768211081, 17406784944114721, 179762725526880242306609281, 1230064011299573560897489169488350806401, 7660929590740297929124296619236388608530015362840364161]

cp's OEIS Frontend

A306207 a(n) = Sum_{k=0..n} (n^2)!/((n^2-nk)!k!^n).

Table of values

List of values

cp's OEIS Frontend

A306207 a(n) = Sum_{k=0..n} (n^2)!/((n^2-n*k)!*k!^n).

Table of values

List of values

A306207 a(n) = Sum_{k=0..n} (n^2)!/((n^2-nk)!k!^n).