A223162 Number of nX3 0..3 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

40, 500, 20000, 540154, 22935840, 767019352, 32485035360, 1174139120817, 49199105599520, 1839627554609556, 76345375355319840, 2907464848035165537, 119821953022067499840, 4614897889020078836652, 189215751229818514619280

Offset

1,1

Comments

Column 3 of A223165

Links

R. H. Hardin, Table of n, a(n) for n = 1..24

Example

Some solutions for n=3
..0..1..1....0..0..0....0..0..1....0..1..2....0..0..3....0..1..2....0..1..0
..0..3..3....1..2..1....1..3..3....1..1..1....1..1..2....0..2..1....0..1..3
..1..1..3....0..2..1....2..1..3....2..2..2....1..1..3....1..3..2....1..1..3

Crossrefs

Sequence in context: A177096 A202902 A140045 * A069079 A093744 A109105

Adjacent sequences: A223159 A223160 A223161 * A223163 A223164 A223165

Keyword

nonn

Author

R. H. Hardin Mar 16 2013

Status

approved