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A058392
Number of 6 X 6 matrices with nonnegative integer entries and all row sums equal to n, up to row and column permutation.
6
1, 11, 782, 96073, 9283247, 537001197, 19578605324, 487615778173, 8892272235593, 125319645293555, 1423054983691408, 13451239365449764, 108603794657349271, 764673059329865921, 4775254548845993462, 26820549989969591853, 137072193873357150230, 643738505766475169048
OFFSET
0,2
PROG
(PARI) \\ See A318951 for RowSumMats
a(n)=RowSumMats(6, 6, n); \\ Andrew Howroyd, Sep 05 2018
CROSSREFS
KEYWORD
nonn
AUTHOR
Vladeta Jovovic, Nov 24 2000
EXTENSIONS
Terms a(15) and beyond from Andrew Howroyd, Sep 05 2018
STATUS
approved