A172754 - OEIS

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

%S 0,0,0,1093050,37642786694586601,14162844503221350778432935135,

%T 53130204996192153080609362878028936125345,

%U 1711672166340730383529033759740996945302163471959773200

%N Number of 2*n X n 0..3 arrays with row sums 10 and column sums 20

%H R. H. Hardin, <a href="/A172754/b172754.txt">Table of n, a(n) for n=1..10</a>

%K nonn

%O 1,4

%A _R. H. Hardin_ Feb 06 2010