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%I #4 Feb 20 2013 17:01:33
%S 0,0,2,7,10,23,64,175,400,983,2498,6409,15982,40282,102240,260590,
%T 662008,1685764,4301724,10996863,28122246,71995471,184507156,
%U 473312401,1215008846,3121272497,8023924572,20640895689,53127720534,136821537884
%N Number of nX2 0..1 arrays with exactly floor(nX2/2) elements unequal to at least one horizontal, vertical or antidiagonal neighbor, with new values introduced in row major 0..1 order
%C Column 2 of A222456
%H R. H. Hardin, <a href="/A222450/b222450.txt">Table of n, a(n) for n = 1..210</a>
%e All solutions for n=4
%e ..0..0....0..0....0..1....0..0....0..0....0..0....0..0
%e ..1..1....0..0....0..0....0..1....0..0....0..0....0..0
%e ..1..1....0..1....0..0....1..1....0..0....0..0....1..1
%e ..1..1....1..1....0..0....1..1....1..0....1..1....1..1
%K nonn
%O 1,3
%A _R. H. Hardin_ Feb 20 2013
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