%I
%S 240064,2092928,16890700,124421880,1218772461,11568061339,98476432408,
%T 907622916436
%N Half the number of (n+2)X7 binary arrays with no 3X3 subblock having a sum equal to any horizontal or vertical neighbor 3X3 subblock sum
%C Column 5 of A187964
%e Some solutions for 4X7 with a(1,1)=0
%e ..0..0..1..1..1..1..1....0..0..0..1..0..0..0....0..0..1..0..1..1..0
%e ..0..0..0..1..0..1..1....0..0..0..1..1..1..0....0..0..0..0..0..1..0
%e ..0..0..0..1..0..1..0....0..0..0..1..0..1..1....0..0..0..1..1..1..0
%e ..0..0..0..0..1..0..0....0..0..1..1..1..0..0....0..0..0..0..0..1..0
%K nonn
%O 1,1
%A _R. H. Hardin_ Mar 16 2011
