A222956 Number of nX3 0..1 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.

4, 4, 16, 16, 64, 64, 400, 324, 2704, 2304, 23104, 19044, 222784, 183184, 2310400, 1937664, 25441936, 21641104, 292820544, 252301456, 3481944064, 3038655376, 42543187600, 37528988176, 531580977216, 473355008064, 6768530689600

Offset: 1

Author

R. H. Hardin Mar 10 2013

Keywords

• nonn

Comments

Column 3 of A222959

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..75