%I #4 Mar 31 2012 12:35:40
%S 35617,87186713382942888000,5516710929099784554483904755922151424000,
%T 333637887279822868851213302567250125738747164586627567616000000,
%U 3578764279810021543463667726214338048478657324628002393015738511636185172262912000000000
%N Number of 7*n X 3*n 0..2 arrays with row sums 3 and column sums 7
%H R. H. Hardin, <a href="/A172712/b172712.txt">Table of n, a(n) for n=1..11</a>
%K nonn
%O 1,1
%A _R. H. Hardin_ Feb 06 2010
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