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A222965 Number of n X 4 0..1 arrays with every row least squares fitting to a positive-slope straight line and every column least squares fitting to a zero- or positive-slope straight line, with a single point array taken as having zero slope.

%I A222965 #14 Dec 04 2021 08:32:02
%S A222965 6,16,96,314,1884,7344,46512,199912,1281096,6018524,38837844,
%T A222965 192182076,1239097956,6379184870,40998506544,217140146844,
%U A222965 1387598473608,7510403679888,47773334036628,262699726452550,1662636615068856
%N A222965 Number of n X 4 0..1 arrays with every row least squares fitting to a positive-slope straight line and every column least squares fitting to a zero- or positive-slope straight line, with a single point array taken as having zero slope.
%e A222965 Some solutions for n=3:
%e A222965   0 0 1 1    0 1 0 1    0 0 0 1    0 0 1 0    0 0 1 0
%e A222965   0 0 1 1    0 1 0 1    0 0 1 1    1 0 1 1    0 0 0 1
%e A222965   0 1 1 1    0 1 0 1    0 0 1 1    0 0 1 1    0 0 1 0
%Y A222965 Column 3 of A222969.
%K A222965 nonn,more
%O A222965 1,1
%A A222965 _R. H. Hardin_, Mar 10 2013