%I
%S 1,0,2,101,1847,161779,17977932,8774928190,4427986390487,
%T 10016765131595843
%N Number of n X n 0..1 arrays with exactly floor(n X n/2) elements unequal to at least one horizontal, vertical or antidiagonal neighbor, with new values introduced in row major 0..1 order
%C Diagonal of A222456
%e Some solutions for n=4
%e ..0..0..1..1....0..0..0..0....0..0..0..0....0..0..0..0....0..1..1..1
%e ..0..0..1..0....0..0..0..0....0..0..0..1....0..0..0..1....0..1..1..1
%e ..0..0..0..0....1..1..0..0....0..0..0..0....1..1..1..1....1..1..1..1
%e ..0..0..0..0....1..1..0..0....0..0..1..0....1..1..1..1....0..1..1..1
%K nonn
%O 1,3
%A _R. H. Hardin_ Feb 20 2013
