%I #4 Apr 08 2020 21:27:14
%S 1,1,7,29,142,556,1919,5793,15758,39131,90185,194905,398773,777708,
%T 1454721,2622421,4575020,7750397,12787648,20600441,32473894,50185556,
%U 76161130,113665307,167041499,242001146,345981348,488570133,682023069,941871068,1287649789
%N Number of non-isomorphic 5 X 5 nonnegative integer symmetric matrices with all row and column sums equal to n up to permutations of rows and columns.
%Y Row n=5 of A333737.
%K nonn
%O 0,3
%A _Andrew Howroyd_, Apr 08 2020