%I #4 Mar 31 2012 12:35:41
%S 0,20,95635680,28021865662196736,180748183717038324996985791,
%T 15496001580602804970376043343562432320,
%U 12274752385434683822697731132401886699781192750720
%N Number of 3*n X n 0..3 arrays with row sums 5 and column sums 15
%H R. H. Hardin, <a href="/A172766/b172766.txt">Table of n, a(n) for n=1..13</a>
%K nonn
%O 1,2
%A _R. H. Hardin_ Feb 06 2010