%I #4 Dec 18 2015 18:17:17
%S 1,0,0,7,15,150,1830,136182,3730237,747469740,63910429200
%N Number of n X n arrays of squares of integers, symmetric under 90 degree rotation, with all rows summing to 36.
%K nonn
%O 1,4
%A _R. H. Hardin_ Feb 09 2009