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%I #4 Mar 31 2012 12:35:41
%S 0,20,2332105236,55821470965449838000,
%T 73884729561168010198433552532700,
%U 2932027248013823224822937070664663188676388640,2229074240908452234163017626536657006251051388006192816445889
%N Number of 3*n X n 0..4 arrays with row sums 7 and column sums 21
%H R. H. Hardin, <a href="/A172834/b172834.txt">Table of n, a(n) for n=1..10</a>
%K nonn
%O 1,2
%A _R. H. Hardin_ Feb 06 2010
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