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%I #3 Mar 31 2012 12:35:41
%S 1,3,55,8515,13130451,210668680701,36012988082548233,
%T 68307608848277646753795,1469748355306450464225368161315,
%U 364459290339560650671344361875961740353
%N Number of n X n 0..3 arrays with row sums 2*n and column sums 2*n
%K nonn
%O 1,2
%A _R. H. Hardin_ Feb 06 2010
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