%I
%S 0,10,12,66,108,402,876,2754,6348,18122,43660,119970,293196,786930,
%T 1963628,5195330,13008844,34140458,85957676,224448290,567203884,
%U 1475618386,3735881132,9694028482,24581846668,63682969994,161696209356
%N Number of nX2 0..1 arrays with no adjacent rows or columns having the same least squares slope fit to a straight line, with a single point array taken as having zero slope
%C Column 2 of A223154
%H R. H. Hardin, <a href="/A223150/b223150.txt">Table of n, a(n) for n = 1..72</a>
%e Some solutions for n=3
%e ..0..0....0..0....0..1....1..0....0..1....1..1....1..0....0..1....0..1....1..1
%e ..0..1....1..0....1..1....0..0....1..0....1..0....0..1....1..0....0..0....0..1
%e ..1..0....0..1....1..0....0..1....0..0....0..1....0..0....1..1....1..0....1..0
%K nonn
%O 1,2
%A _R. H. Hardin_ Mar 16 2013
