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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.
11

%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