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A172856
Number of n X n 0..5 arrays with row sums 12 and column sums 12.
1
0, 0, 55, 571189, 50984927470, 23739529252540151, 48305357301322263405109, 370911274700550803678566199652, 9515813289536524717883338564939648176, 736766457419317377244512506283142581954316500
OFFSET
1,3
LINKS
CROSSREFS
Sequence in context: A046194 A172808 A243315 * A093255 A172896 A201823
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 06 2010
STATUS
approved