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A172711 Number of 7*n X 7 0..2 arrays with row sums 2 and column sums 2*n 1
9135630, 18126466426218150, 76497104228450459248094400, 447362835296127429187676764430583750, 3140955188547844588635579044406639849274718880 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
CROSSREFS
Sequence in context: A015350 A233613 A172620 * A187675 A205615 A251399
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 06 2010
STATUS
approved

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Last modified July 23 20:16 EDT 2024. Contains 374553 sequences. (Running on oeis4.)