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Number of 2*n X n 0..4 arrays with row sums 6 and column sums 12
1

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

%S 0,19,805231,744168838420,7608443835495995100,

%T 594239211348093910990313341,269741028364409749133570268559118335,

%U 576542290820108436100865963035873493286055960

%N Number of 2*n X n 0..4 arrays with row sums 6 and column sums 12

%H R. H. Hardin, <a href="/A172824/b172824.txt">Table of n, a(n) for n=1..15</a>

%K nonn

%O 1,2

%A _R. H. Hardin_ Feb 06 2010