%I #12 Oct 14 2024 10:55:31
%S 1,13,169,112489,10309971465,121778484808846083,
%T 193842679171307621077398205
%N Number of n X n 0..12 matrices with all row and column sums equal.
%Y Column k=12 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 11 2023
%E a(0)=1 prepended by _Andrew Howroyd_, Oct 14 2024