%I #4 Mar 31 2012 12:35:41
%S 1,19,28681,3017084995,37642786694586601,58256290618618126540488181,
%T 11402923087449460426136950157514212457,
%U 300748551220458753215613602117054376767307058363395
%N Number of 2*n X n 0..3 arrays with row sums n and column sums 2*n
%H R. H. Hardin, <a href="/A172762/b172762.txt">Table of n, a(n) for n=1..10</a>
%K nonn
%O 1,2
%A _R. H. Hardin_ Feb 06 2010