A223823 Number of nX6 0..3 arrays with every row and column least squares fitting to a zero slope straight line, with a single point array taken as having zero slope.

172, 172, 29584, 45000, 16748672, 32376064, 34078942048, 73306891648, 142350488320080

Offset: 1

Author

R. H. Hardin Mar 27 2013

Keywords

• nonn

Comments

Column 6 of A223824

Examples

			Some solutions for n=4
..1..0..3..3..0..1....1..0..3..2..2..0....2..2..3..1..1..3....2..0..1..0..2..1
..3..3..0..0..3..3....1..3..1..2..1..2....3..2..3..3..2..3....2..1..3..3..1..2
..3..0..3..3..0..3....1..3..1..2..1..2....3..2..3..3..2..3....2..1..0..0..1..2
..1..1..2..2..1..1....1..0..3..2..2..0....2..2..3..1..1..3....2..0..2..1..2..1