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A172808 Number of n X n 0..4 arrays with row sums 9 and column sums 9 1
0, 0, 55, 157984, 2461011960, 148699584483880, 29715346096043717550, 17246529136870025302912000, 26159597034338175244538552103907, 95066344634881957233042525618261985200 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

R. H. Hardin, Table of n, a(n) for n=1..15

CROSSREFS

Sequence in context: A265980 A287053 A046194 * A243315 A172856 A093255

Adjacent sequences:  A172805 A172806 A172807 * A172809 A172810 A172811

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 06 2010

STATUS

approved

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Last modified June 24 00:11 EDT 2021. Contains 345403 sequences. (Running on oeis4.)