A333735 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.

1, 1, 7, 31, 264, 1856, 12703, 71457, 348622, 1477513, 5584477, 19071063, 59748789, 173510124, 471615249, 1208756261, 2940705168, 6827326093, 15197942364, 32566376769, 67408927586, 135184087822, 263356043520, 499542801451, 924501767285, 1672391804486

Offset: 0

Author

Andrew Howroyd, Apr 04 2020

Keywords

• nonn

Crossrefs

Row n=5 of A333733.