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A172809 Number of n X n 0..4 arrays with row sums 5 and column sums 5 1
0, 4, 189, 36840, 21107931, 29990997180, 92673325442124, 563326170709889664, 6228365853689321408640, 117660704031419990309224272, 3609165493134932351223036800520, 172329705795296334349960101885305088 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

R. H. Hardin, Table of n, a(n) for n=1..35

CROSSREFS

Sequence in context: A266492 A285882 A208184 * A123116 A163839 A012015

Adjacent sequences:  A172806 A172807 A172808 * A172810 A172811 A172812

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 06 2010

STATUS

approved

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Last modified June 21 00:57 EDT 2021. Contains 345329 sequences. (Running on oeis4.)