%I #16 Jul 24 2023 15:09:34
%S 1,24,360144,20914499571840
%N a(n) is the number of n X n nonsingular matrices using all the integers from 1 to n^2.
%F a(n) = (n^2)! - A221976(n). - _Vaclav Kotesovec_, Jul 16 2023
%Y Right diagonal of A364203.
%Y Cf. A085000 (maximal determinant), A350565 (minimal permanent), A350566 (maximal permanent).
%Y Cf. A364227 (with prime numbers).
%Y Cf. A088020, A136609, A221976.
%K nonn,hard,more
%O 1,2
%A _Stefano Spezia_, Jul 13 2023
%E a(4) from _Vaclav Kotesovec_, Jul 16 2023 (using A221976)