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A172713
Number of 7*n X 7 0..2 arrays with row sums 3 and column sums 3*n
1
3758757240, 8610740229284196003000, 42758542523186088601256526892620000, 295799727163686817428226118102222383709995755000, 2462059619716250949213618993808700317296159580533060054282240
OFFSET
1,1
LINKS
CROSSREFS
Sequence in context: A135915 A104330 A233607 * A121110 A352531 A233599
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 06 2010
STATUS
approved