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A172661 Number of 2*n X 6 0..2 arrays with row sums 3 and column sums n 1
20, 16260, 16214000, 20982583300, 31091880269520, 50432680389260400, 87186713382942888000, 158040497103890978362500, 297155971199028097720850000, 575241665325478123466841078160 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
CROSSREFS
Sequence in context: A028667 A201507 A167060 * A172758 A146497 A348144
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 06 2010
STATUS
approved

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Last modified April 22 21:44 EDT 2024. Contains 371906 sequences. (Running on oeis4.)