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A172750
Number of 2*n X n 0..3 arrays with row sums 5 and column sums 10
1
0, 6, 81225, 19641294288, 37642786694586601, 407505677116244252111280, 19524684484378921494922081853046, 3444203485343904342478939367221160666880
OFFSET
1,2
LINKS
CROSSREFS
Sequence in context: A101450 A101439 A099112 * A086897 A034208 A003834
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 06 2010
STATUS
approved