%I
%S 0,3,4,11,18,73,152,470,1022,3361,7840,23386,57626,172387,434280,
%T 1257025,3275034,9399647,24776572,70325187,188540168,531573662,
%U 1436226680,4032772569,10987025446,30742228871,84180549328,235159618106
%N Number of 2Xn 0..1 arrays with exactly floor(2Xn/2) elements unequal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..1 order
%C Row 2 of A222769
%H R. H. Hardin, <a href="/A222770/b222770.txt">Table of n, a(n) for n = 1..107</a>
%e All solutions for n=3
%e ..0..0..0....0..0..0....0..0..1....0..0..1
%e ..0..1..1....1..0..0....1..1..1....0..0..0
%K nonn
%O 1,2
%A _R. H. Hardin_ Mar 05 2013
