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A172596
Number of 5*n X 4*n 0..1 arrays with row sums 4 and column sums 5
1
1, 273957842462220, 2460737690938850798370391240644900, 15195407946323194013765595656097788013666363361791048000, 13223617955495651593814858107477805060086684838739019514933477474642809905360000
OFFSET
1,2
LINKS
CROSSREFS
Sequence in context: A086440 A216906 A229383 * A121111 A352532 A179660
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 06 2010
STATUS
approved