%I #12 Oct 14 2024 10:56:08
%S 1,14,196,162722,21592075596,428134536074377254,
%T 1326740266296956878519910950
%N Number of n X n 0..13 matrices with all row and column sums equal.
%Y Column k=13 of A202784.
%K nonn,more
%O 0,2
%A _R. H. Hardin_, Feb 20 2002
%E a(5)-a(6) from _Sean A. Irvine_, Dec 10 2023
%E a(0)=1 prepended by _Andrew Howroyd_, Oct 14 2024