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A172736
Number of n X n 0..3 arrays with row sums 5 and column sums 5.
1
0, 2, 87, 20112, 13130451, 20592419760, 68480747646822, 439844417498287872, 5071434436872671368032, 98967158653968381405705552, 3114311420263883442781958758440, 151767050607668644623432327234864384
OFFSET
1,2
LINKS
CROSSREFS
Sequence in context: A177318 A280551 A283945 * A244386 A273520 A066226
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 06 2010
STATUS
approved