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A172769
Number of 3*n X 15 0..3 arrays with row sums 5 and column sums n
1
756756, 19292117692187340, 2275745987915517509338826880, 520089040184399473996377693211802013900, 176031335522662538972343236688818802372580893815856
OFFSET
1,1
LINKS
CROSSREFS
Sequence in context: A172586 A172571 A172670 * A172837 A172885 A306959
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 06 2010
STATUS
approved