%I #6 Mar 31 2012 12:36:49

%S 126,3150,157952,18741086,4938195402,2959658132400,3996920175877750,

%T 12207027709419962294,84190194249126084633600,

%U 1311991584509363060990507862,46186755299185341632232009561226

%N Number of (n+2)X(n+2) binary arrays avoiding patterns 001 and 000 in rows and columns

%C Diagonal of A202601

%H R. H. Hardin, <a href="/A202593/b202593.txt">Table of n, a(n) for n = 1..21</a>

%e Some solutions for n=2

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Dec 21 2011