%I #5 Mar 31 2012 12:36:03
%S 1716,3456,7888,24392,61676,175588,441004,1379208,3532152,10752096,
%T 27566736,87374372,225433740,709275680,1833687964,5872284748,
%U 15224916988,48703456708,126499375072,407817168640,1061259571028,3422366531456
%N Number of (n+1)X7 binary arrays with no 2X2 subblock sum equal to any horizontal or vertical neighbor 2X2 subblock sum
%C Column 6 of A185798
%H R. H. Hardin, <a href="/A185795/b185795.txt">Table of n, a(n) for n = 1..200</a>
%e Some solutions for 3X7
%e ..0..0..0..1..0..0..1....0..0..0..0..1..0..1....0..1..0..0..0..0..0
%e ..0..1..1..1..0..1..0....1..0..0..1..0..0..1....0..1..1..0..0..1..1
%e ..1..0..1..1..1..0..0....1..0..1..0..0..0..0....1..1..1..1..0..1..0
%K nonn
%O 1,1
%A _R. H. Hardin_ Feb 04 2011