%I #4 Mar 31 2012 12:35:40
%S 0,0,0,369600,8432855707512236000,2333327772435239191435579651896000,
%T 7912042661932746320895028318655823357822209601009,
%U 288661272140059402021783839980598829830361488723258925444306851840
%N Number of 3*n X n 0..2 arrays with row sums 7 and column sums 21
%H R. H. Hardin, <a href="/A172666/b172666.txt">Table of n, a(n) for n=1..10</a>
%K nonn
%O 1,4
%A _R. H. Hardin_ Feb 06 2010