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A172608 Number of 7*n X 7 0..1 arrays with row sums 3 and column sums 3*n 1
68938800, 617944896216648000, 12218892645550878420052920000, 337799058758556439723480176591336120000, 11251027489082268563385494644966780470231583948800 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
CROSSREFS
Sequence in context: A084071 A251615 A321706 * A294989 A204405 A186618
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 06 2010
STATUS
approved

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Last modified July 18 04:34 EDT 2024. Contains 374377 sequences. (Running on oeis4.)