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Number of n X n 0..8 arrays with row sums 9 and column sums 9
1

%I #4 Mar 31 2012 12:35:42

%S 0,8,1462,2285392,20799366165,841536749932180,123497359693624468650,

%T 56264817255407588985669120,70413374705157290394475959841507,

%U 219295201090394751786316169884571962500

%N Number of n X n 0..8 arrays with row sums 9 and column sums 9

%H R. H. Hardin, <a href="/A172938/b172938.txt">Table of n, a(n) for n=1..15</a>

%K nonn

%O 1,2

%A _R. H. Hardin_ Feb 06 2010