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%I #8 Dec 10 2023 22:04:55
%S 15,225,229503,42980713761,1380524064964529355,
%T 7955148565342992851131291305
%N Number of n X n 0..14 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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