A222925 Number of (n+1)X2 0..3 arrays with every row and column least squares fitting to a positive slope straight line.

6, 36, 340, 1914, 13850, 79266, 523133, 3016164, 19260414, 111909408, 701498945, 4101068118, 25437014760, 149386746096, 920230171199, 5422680704100, 33245274102805, 196418074534326, 1200010201718666, 7104314939065032

Offset: 1

Author

R. H. Hardin Mar 09 2013

Keywords

• nonn

Comments

Column 1 of A222929

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..34