%I #4 Mar 11 2013 13:40:35
%S 1,4,10,34,101,331,1044,3406,11008,36039,117866,387709,1276783,
%T 4217763,13954040,46258390,153562565,510523621,1699272620,5662498639,
%U 18888082230,63062936820,210730527620,704727803329,2358457291626,7898146040191
%N Number of nX2 0..1 arrays with no more than floor(nX2/2) elements unequal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..1 order
%C Column 2 of A223012
%H R. H. Hardin, <a href="/A223006/b223006.txt">Table of n, a(n) for n = 1..210</a>
%e All solutions for n=3
%e ..0..0....0..0....0..0....0..0....0..0....0..0....0..1....0..0....0..1....0..0
%e ..0..0....0..1....1..1....1..0....0..0....0..0....0..0....0..1....1..1....0..0
%e ..0..1....0..0....1..1....0..0....1..0....1..1....0..0....1..1....1..1....0..0
%K nonn
%O 1,2
%A _R. H. Hardin_ Mar 11 2013