%I #5 Mar 31 2012 12:35:51
%S 4,8,46,69,227,794,2701,9816,34649,120536,434313,1550296,5499239,
%T 19551466,69802571,249420924,889851040,3174899619,11337371343,
%U 40485754845,144598455899,516411037596,1844321799338,6587372833183
%N Half the number of nX3 binary arrays with no element equal to a strict majority of its knight-move neighbors
%C Column 3 of A183397
%H R. H. Hardin, <a href="/A183394/b183394.txt">Table of n, a(n) for n = 1..200</a>
%e Some solutions with a(1,1)=0 for 5X3
%e ..0..0..0....0..1..1....0..0..1....0..1..0....0..0..1....0..0..1....0..0..1
%e ..1..1..0....0..1..1....0..0..1....1..1..0....0..1..1....0..0..1....0..0..1
%e ..1..1..0....0..0..1....0..0..1....1..1..0....0..1..1....0..0..1....0..1..1
%e ..1..1..0....0..1..1....0..0..1....0..1..0....0..0..1....0..1..1....0..0..1
%e ..1..0..0....0..0..1....1..0..1....1..0..1....0..0..1....0..0..1....0..0..1
%K nonn
%O 1,1
%A _R. H. Hardin_ Jan 04 2011