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A172884
Number of 3*n X n 0..5 arrays with row sums 5 and column sums 15
1
1, 4332, 7020205512, 822065583733092864, 2756256275031328927730303391, 145638518631283768165426487679968270016, 79865167852275876121290622323639890979486114456768
OFFSET
1,2
LINKS
CROSSREFS
Sequence in context: A300359 A299704 A298431 * A172915 A317046 A259961
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 06 2010
STATUS
approved