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Number of 4*n X 3*n 0..3 arrays with row sums 3 and column sums 4
1

%I #4 Mar 31 2012 12:35:41

%S 415,33833709700,1182802402030354182000,

%T 2253836332035499736062301563800000,

%U 85504723470329847456379126545730424791071000000

%N Number of 4*n X 3*n 0..3 arrays with row sums 3 and column sums 4

%H R. H. Hardin, <a href="/A172779/b172779.txt">Table of n, a(n) for n=1..24</a>

%K nonn

%O 1,1

%A _R. H. Hardin_ Feb 06 2010