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A172882 Number of 3*n X n 0..5 arrays with row sums 6 and column sums 18 1
0, 1751, 31175004775, 45086287276225676316, 2621840984501107521339241754700, 3490160725561441439459874178515370729198161, 69170157963114769801393728393183054793115323713429835710 (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: A324710 A201801 A172833 * A251892 A143994 A157325

Adjacent sequences:  A172879 A172880 A172881 * A172883 A172884 A172885

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 06 2010

STATUS

approved

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Last modified November 23 21:51 EST 2020. Contains 338603 sequences. (Running on oeis4.)