%I #5 Mar 31 2012 12:36:06
%S 126,3988,222632,24581099,5634207241,2438542117645,2065963672906699
%N Half the number of (n+2)X(n+2) binary arrays with each 3X3 subblock having sum 4 or 5
%C Diagonal of A186825
%e Some solutions for 4X4 with a(1,1)=0
%e ..0..1..0..1....0..1..1..0....0..0..0..0....0..1..0..1....0..0..0..0
%e ..1..0..1..1....0..0..1..0....0..1..1..1....1..0..1..1....1..1..0..0
%e ..1..1..0..0....1..1..0..0....0..1..1..0....1..0..0..0....0..1..1..1
%e ..0..0..1..0....1..0..1..1....0..0..0..0....1..1..0..1....0..0..0..1
%K nonn
%O 1,1
%A _R. H. Hardin_ Feb 27 2011