A188308 - OEIS

A188308

Number of (n+1)X7 binary arrays with every 2X2 subblock sum equal to exactly one or two horizontal and vertical neighbor 2X2 subblock sums

%I #4 Mar 31 2012 12:36:11

%S 1332,71888,1514522,37040856,878907878,21615769428,520845610752

%N Number of (n+1)X7 binary arrays with every 2X2 subblock sum equal to exactly one or two horizontal and vertical neighbor 2X2 subblock sums

%C Column 6 of A188311

%e Some solutions for 3X7

%e ..0..1..0..0..0..1..0....0..1..1..1..1..0..0....1..1..0..1..0..1..1

%e ..0..0..0..0..0..1..0....1..1..0..1..0..1..1....1..1..1..0..1..1..0

%e ..0..1..1..1..0..0..0....0..1..0..1..1..0..0....1..1..0..0..0..1..1

%K nonn

%O 1,1

%A _R. H. Hardin_ Mar 27 2011