%I #4 Dec 18 2015 18:17:17
%S 1,2,10,198,10918,2335392,1569913286,14728525914260,599617717929388908
%N Number of n X n arrays of squares of integers, symmetric about main diagonal, with all rows summing to 49.
%K nonn
%O 1,2
%A _R. H. Hardin_ Feb 09 2009