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A172958
Number of n X n 0..9 arrays with row sums 9 and column sums 9.
4
1, 1, 10, 1540, 2309384, 20856798285, 842286559093240, 123538613356253145400, 56272722406349235035916800, 70417932475495769964322670258947, 219302242655748448462474951981229489200
OFFSET
0,3
LINKS
CROSSREFS
Column k=9 of A257493.
Sequence in context: A194792 A133216 A099128 * A286397 A160236 A204466
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 06 2010
STATUS
approved