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A172726 Number of n X n 0..3 arrays with row sums 18 and column sums 18 0
0, 0, 0, 0, 0, 1, 4662857360, 54450121092072227480, 1469748355306450464225368161315, 111562091000778108490941203120508002739900 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,7

LINKS

Table of n, a(n) for n=1..10.

CROSSREFS

Sequence in context: A286817 A280182 A034916 * A172797 A199631 A124977

Adjacent sequences:  A172723 A172724 A172725 * A172727 A172728 A172729

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 06 2010

STATUS

approved

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Last modified January 19 22:12 EST 2022. Contains 350466 sequences. (Running on oeis4.)