A222844 Number of (n+1)X3 0..2 arrays with every row and column least squares fitting to a positive slope straight line.

3, 27, 576, 4896, 63455, 531864, 5916807, 49852089, 513363015, 4356708120, 43202639844, 369377896383, 3577597178939, 30801614053968, 293760174674232, 2545094117389824, 24014459778781840, 209083911110141112

Offset: 1

Author

R. H. Hardin Mar 07 2013

Keywords

• nonn

Comments

Column 2 of A222847

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..22