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A172916 Number of 3*n X 9 0..6 arrays with row sums 6 and column sums 2*n 1
352128, 811889208811800, 4801114002903931560293544, 43212752077206858567543807299695080, 493557244824104842248683942590327045986131328 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

R. H. Hardin, Table of n, a(n) for n=1..13

CROSSREFS

Sequence in context: A172773 A172840 A172886 * A172765 A205632 A205334

Adjacent sequences:  A172913 A172914 A172915 * A172917 A172918 A172919

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 06 2010

STATUS

approved

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Last modified July 6 12:26 EDT 2022. Contains 355110 sequences. (Running on oeis4.)