%I #4 Dec 18 2015 18:17:17
%S 1,2,4,11,10047,7176242,28757181899,477133046143746
%N Number of n X n arrays of squares of integers, symmetric about main diagonal, with all rows summing to 64.
%K nonn
%O 1,2
%A _R. H. Hardin_ Feb 09 2009