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%I A172606 #4 Mar 31 2012 12:35:40
%S A172606 3110940,807998767676100,452489654840076972518400,
%T A172606 352231966693098849132080247442500,
%U A172606 329566582178898535416815000275618647613440
%N A172606 Number of 7*n X 7 0..1 arrays with row sums 2 and column sums 2*n
%H A172606 R. H. Hardin, <a href="/A172606/b172606.txt">Table of n, a(n) for n=1..14</a>
%K A172606 nonn
%O A172606 1,1
%A A172606 _R. H. Hardin_ Feb 06 2010

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