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A172836 Number of 3*n X n 0..4 arrays with row sums 6 and column sums 18 1
0, 141, 3757921291, 8871900691867826316, 753400574499912868356844716700, 1329096037020824944632051261867911008990401, 32446537190781931300574314797091618240587813777700345470 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

R. H. Hardin, Table of n, a(n) for n=1..11

CROSSREFS

Sequence in context: A066627 A172668 A172764 * A087001 A025379 A202279

Adjacent sequences:  A172833 A172834 A172835 * A172837 A172838 A172839

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 06 2010

STATUS

approved

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Last modified January 19 20:33 EST 2019. Contains 319310 sequences. (Running on oeis4.)