%I #4 Dec 18 2015 18:17:15
%S 4,96,16816,4506134,921762154,339740101635,36832745153541
%N Number of n X n arrays of squares of integers summing to 20 with every element equal to at least one neighbor.
%K nonn
%O 2,1
%A _R. H. Hardin_ Apr 14 2009