%I #4 Apr 04 2020 19:19:12
%S 1,1,7,31,264,1856,12703,71457,348622,1477513,5584477,19071063,
%T 59748789,173510124,471615249,1208756261,2940705168,6827326093,
%U 15197942364,32566376769,67408927586,135184087822,263356043520,499542801451,924501767285,1672391804486
%N Number of non-isomorphic 5 X 5 nonnegative integer matrices with all row and column sums equal to n up to permutations of rows and columns.
%Y Row n=5 of A333733.
%K nonn
%O 0,3
%A _Andrew Howroyd_, Apr 04 2020