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

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

Crossrefs

Sequence in context: A221805 A089211 A220927 * A041188 A113683 A330790

Adjacent sequences: A222855 A222856 A222857 * A222859 A222860 A222861

Keyword

nonn

Author

R. H. Hardin Mar 07 2013

Status

approved