%I #4 Feb 14 2013 20:24:42
%S 1,0,0,3,4,4,5,20,27,48,63,175,236,512,684,1719,2320,5400,7271,17776,
%T 24036,57420,77636,188656,255591,617176,836595,2033175,2759184,
%U 6697744,9094949,22139780,30086955,73262232,99615081,242931321,330503120
%N Number of nX1 0..1 arrays with exactly floor(nX1/2) elements unequal to at least one horizontal or vertical neighbor, with new values introduced in row major 0..1 order
%C Column 1 of A222290
%H R. H. Hardin, <a href="/A222283/b222283.txt">Table of n, a(n) for n = 1..210</a>
%e All solutions for n=4
%e ..0....0....0
%e ..1....0....0
%e ..1....0....1
%e ..1....1....1
%K nonn
%O 1,4
%A _R. H. Hardin_ Feb 14 2013