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A052372
Number of nonnegative integer 6 X 6 matrices with sum of elements equal to n, under row and column permutations.
3
1, 1, 4, 10, 33, 91, 298, 881, 2825, 8791, 27947, 87410, 272991, 837370, 2532012, 7496030, 21735743, 61570427, 170399621, 460413115, 1214983434, 3131870712, 7890604652, 19441462894, 46878788710, 110702854983, 256217556777
OFFSET
0,3
LINKS
CROSSREFS
Row 6 of A318795.
Sequence in context: A309682 A318563 A052367 * A052373 A007716 A122948
KEYWORD
nonn
AUTHOR
Vladeta Jovovic, Mar 08 2000
STATUS
approved