%I #3 Mar 31 2012 12:35:23
%S 1,2,0,0,5,3,0,0,2,4,0,0,0,4,0,0,7,4,0,0,7,0,0,0,0,8,0,0,0,10,0,0,6,0,
%T 0,0,15,6,0,0,6,6,0,0,0,11,0,0,0,6,0,0,10,14,0,0,0,0,0,0,0,10,0,0,7,
%U 12,0,0,28,0,0,0,10,6,0,0,0,6,0,0,17,12,0,0,0,16,0,0,0,14,0,0,0,0,0,0,0,6,0,0
%N Number of 5X5 arrays of squares of integers, symmetric under 90 degree rotation, with all rows summing to n.
%e All solutions for n=4
%e ...0.0.0.4.0...0.4.0.0.0...1.0.1.1.1...1.1.0.1.1...1.1.1.0.1
%e ...4.0.0.0.0...0.0.0.0.4...1.1.1.1.0...1.1.0.1.1...0.1.1.1.1
%e ...0.0.4.0.0...0.0.4.0.0...1.1.0.1.1...0.0.4.0.0...1.1.0.1.1
%e ...0.0.0.0.4...4.0.0.0.0...0.1.1.1.1...1.1.0.1.1...1.1.1.1.0
%e ...0.4.0.0.0...0.0.0.4.0...1.1.1.0.1...1.1.0.1.1...1.0.1.1.1
%K nonn
%O 0,2
%A _R. H. Hardin_ Feb 09 2009