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Number of 2*n X n 0..7 arrays with row sums 9 and column sums 18
1

%I #4 Mar 31 2012 12:35:42

%S 0,146,62923906,1389194436231112,851595316175807779373475,

%T 9204278755664744827525498829547800,

%U 1226956821626286798384954346260110391913131030

%N Number of 2*n X n 0..7 arrays with row sums 9 and column sums 18

%H R. H. Hardin, <a href="/A172933/b172933.txt">Table of n, a(n) for n=1..10</a>

%K nonn

%O 1,2

%A _R. H. Hardin_ Feb 06 2010