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%I #5 Mar 31 2012 12:36:05
%S 134217728,3383,335092,17616908,59508492,69691980,93739724,178672908,
%T 557336396,3528280204
%N Number of (n+2)X(n+2) 0..7 arrays with every 3X3 subblock commuting with each horizontal and vertical neighbor 3X3 subblock
%C Diagonal of A186574
%e Some solutions for 4X4
%e ..0..0..7..2....0..0..0..0....0..0..4..3....0..0..0..0....0..1..0..0
%e ..0..0..0..2....0..0..0..0....0..0..0..6....2..0..0..0....0..0..1..0
%e ..0..0..0..0....0..0..0..0....0..0..0..0....6..2..0..0....5..0..0..1
%e ..0..0..0..0....3..2..0..0....0..0..0..0....6..6..2..0....0..5..0..0
%K nonn
%O 1,1
%A _R. H. Hardin_ Feb 23 2011