A205271 - OEIS

%I #5 Mar 31 2012 12:37:05

%S 4285989,686818023,109752541538,17296548519787,2736913657929574,

%T 433101439309430572,68514158629820422369,10839389328727316878809,

%U 1714870603504177193636949,271303150391768215905444630

%N Number of (n+2)X8 0..1 arrays with every 3X3 subblock having three equal elements in a row horizontally, vertically or nw-to-se diagonally, and new values 0..1 introduced in row major order

%C Column 6 of A205273

%H R. H. Hardin, <a href="/A205271/b205271.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=3

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Jan 24 2012