%I #11 Dec 10 2023 15:15:34
%S 16,256,316624,81851507456,4128449284755670956,
%T 42503886964244001261643010752
%N Number of n X n 0..15 matrices with all row and column sums equal.
%K nonn,more
%O 1,1
%A _R. H. Hardin_, Feb 20 2002
%E a(5)-a(6) from _Sean A. Irvine_, Dec 10 2023
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