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A172750 Number of 2*n X n 0..3 arrays with row sums 5 and column sums 10 1
0, 6, 81225, 19641294288, 37642786694586601, 407505677116244252111280, 19524684484378921494922081853046, 3444203485343904342478939367221160666880 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

R. H. Hardin, Table of n, a(n) for n=1..18

CROSSREFS

Sequence in context: A101450 A101439 A099112 * A086897 A034208 A003834

Adjacent sequences:  A172747 A172748 A172749 * A172751 A172752 A172753

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 06 2010

STATUS

approved

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Last modified June 23 08:56 EDT 2021. Contains 345395 sequences. (Running on oeis4.)