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A172648 Number of 2*n X n 0..2 arrays with row sums 9 and column sums 18 1
0, 0, 0, 0, 113400, 50432680389260400, 101720498887190010630546323580, 1021718304724615708073668620385984867252800, 52487498990202837315687104908805779583934003413314100425 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,5
LINKS
CROSSREFS
Sequence in context: A172549 A172589 A172692 * A259010 A259003 A256901
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 06 2010
STATUS
approved

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Last modified May 22 05:07 EDT 2024. Contains 372742 sequences. (Running on oeis4.)