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A222858

Number of nX4 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.

10, 41, 410, 2262, 22620, 156436, 1672630, 12777951, 137893630, 1149894920, 12404839040, 108106327001, 1160341870500, 10427449608028, 111092085640400, 1019673460797990, 10777772811219450, 100433003025931774

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OFFSET

1,1

COMMENTS

Column 4 of A222862

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..19

EXAMPLE

Some solutions for n=3

..0..0..0..0....0..0..0..0....0..1..1..0....0..0..1..0....0..0..0..0

..0..1..1..1....0..0..0..1....0..0..1..1....0..0..0..1....1..0..1..1

..0..1..1..1....1..0..1..1....0..1..1..1....0..1..1..1....0..0..1..1