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Number of n X 6 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.
0

%I #11 Dec 04 2021 08:32:37

%S 28,185,5180,53292,1492176,21852384,687269268,11877013537,

%T 379255412732,7601814965106,242873494106544

%N Number of n X 6 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 Some solutions for n=3:

%e 0 0 0 0 1 1 0 0 1 0 1 0 0 0 1 1 1 0 0 0 0 0 0 1

%e 0 1 0 1 0 1 0 1 0 1 0 1 0 0 1 1 0 1 0 1 0 0 1 1

%e 0 1 1 1 1 1 0 0 1 1 1 0 0 0 1 1 1 0 1 0 0 1 0 1

%Y Column 5 of A222969.

%K nonn,more

%O 1,1

%A _R. H. Hardin_, Mar 10 2013