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A172938
Number of n X n 0..8 arrays with row sums 9 and column sums 9
1
0, 8, 1462, 2285392, 20799366165, 841536749932180, 123497359693624468650, 56264817255407588985669120, 70413374705157290394475959841507, 219295201090394751786316169884571962500
OFFSET
1,2
LINKS
CROSSREFS
Sequence in context: A225068 A270145 A201492 * A252176 A252763 A096970
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 06 2010
STATUS
approved