A058392 Number of 6 X 6 matrices with nonnegative integer entries and all row sums equal to n, up to row and column permutation.

1, 11, 782, 96073, 9283247, 537001197, 19578605324, 487615778173, 8892272235593, 125319645293555, 1423054983691408, 13451239365449764, 108603794657349271, 764673059329865921, 4775254548845993462, 26820549989969591853, 137072193873357150230, 643738505766475169048

Offset

0,2

Links

Andrew Howroyd, Table of n, a(n) for n = 0..1000

V. Jovovic, Number of m x m nonnegative integer matrices with all row sums equal to n, up to row and column permutation.

Prog

(PARI) \\ See A318951 for RowSumMats
a(n)=RowSumMats(6, 6, n); \\ Andrew Howroyd, Sep 05 2018

Crossrefs

Row 6 of A318951.

Cf. A002620, A058389-A058391, A003439, A005467.

Sequence in context: A180740 A330309 A110776 * A100369 A196426 A238715

Adjacent sequences: A058389 A058390 A058391 * A058393 A058394 A058395

Keyword

nonn

Author

Vladeta Jovovic, Nov 24 2000

Extensions

Terms a(15) and beyond from Andrew Howroyd, Sep 05 2018

Status

approved