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%I #4 Mar 31 2012 12:35:41
%S 248137,276686670102097569600,
%T 12577849178653907149465594061673565824000,
%U 633070426668791623743477133016092146118990897169495988019200000,6041723108140506139185920296627256100375775025140875595591377857737131840561930240000000
%N Number of 7*n X 3*n 0..3 arrays with row sums 3 and column sums 7
%H R. H. Hardin, <a href="/A172796/b172796.txt">Table of n, a(n) for n=1..11</a>
%K nonn
%O 1,1
%A _R. H. Hardin_ Feb 06 2010