%I #6 Dec 18 2015 18:17:27
%S 1,3,9,55,910,29400,2160250,348871589,124597748299,98443712937832,
%T 171962948531581497,664040284641624620852,5667787901436816984441067
%N Half the number of n X n binary arrays with no element equal to a strict majority of its horizontal and vertical neighbors
%C Diagonal of A183312
%e Some solutions with a(1,1)=0 for 5X5
%e ..0..1..0..1..0....0..1..0..1..0....0..1..0..1..0....0..1..0..0..1
%e ..0..1..0..1..0....0..1..0..0..1....0..1..0..0..1....1..0..1..1..0
%e ..1..1..0..0..1....1..0..1..0..1....1..0..1..0..1....0..1..1..0..1
%e ..0..0..1..1..0....0..0..1..1..0....1..0..1..1..0....0..1..0..1..0
%e ..1..0..1..0..1....1..1..0..1..0....0..1..0..0..1....1..0..1..0..1
%K nonn
%O 1,2
%A _R. H. Hardin_ Jan 03 2011