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A172963 Number of 2*n X n 0..9 arrays with row sums 9 and column sums 18 1
1, 670, 133721236, 2043207067941480, 1047367983257881640491925, 10336768663024665454036757208361400, 1313075006655438005305387554231256477491331800 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

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

CROSSREFS

Sequence in context: A250670 A235101 A232388 * A351668 A218795 A281526

Adjacent sequences:  A172960 A172961 A172962 * A172964 A172965 A172966

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 06 2010

STATUS

approved

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Last modified September 30 13:23 EDT 2022. Contains 357105 sequences. (Running on oeis4.)