%I #6 Mar 24 2023 10:19:03
%S 2,3,6,10,20,36,74,137,282,536,1100,2117,4332,8406,17144,33464,68058,
%T 133398,270700,532230,1078080,2124714,4297434,8485470,17141764,
%U 33898436,68409684,135450295,273114928,541320762,1090693986,2163654766,4356757738
%N Number of n X 1 0..1 arrays with every row and column least squares fitting to a nonnegative slope straight line, with a single point array taken as having zero slope.
%C Column 1 of A222862.
%H R. H. Hardin, <a href="/A222855/b222855.txt">Table of n, a(n) for n = 1..210</a>
%e All solutions for n=3
%e ..0....0....1....1....0....0
%e ..0....1....0....1....0....1
%e ..1....0....1....1....0....1
%Y Cf. A222862.
%K nonn
%O 1,1
%A _R. H. Hardin_, Mar 07 2013