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A172650 Number of 2*n X n 0..2 arrays with row sums 5 and column sums 10 1
0, 0, 90, 34145664, 101471705778601, 1563133410663239958840, 101720498887190010630546323580, 23601511081513772065907556838530960960, 17017920144305424073117333502327304544668289632 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

R. H. Hardin, Table of n, a(n) for n=1..18

CROSSREFS

Sequence in context: A135321 A135428 A028672 * A252093 A172756 A306304

Adjacent sequences:  A172647 A172648 A172649 * A172651 A172652 A172653

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 06 2010

STATUS

approved

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Last modified April 20 17:54 EDT 2019. Contains 322310 sequences. (Running on oeis4.)