login
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, 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
0,3
CROSSREFS
Row n=5 of A333733.
Sequence in context: A261558 A241456 A094711 * A221875 A143564 A352411
KEYWORD
nonn
AUTHOR
Andrew Howroyd, Apr 04 2020
STATUS
approved