A223044 - OEIS

A223044

Number of nX1 0..2 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

3, 6, 18, 45, 141, 386, 1191, 3402, 10446, 30294, 92577, 270999, 825300, 2429282, 7379169, 21802419, 66100641, 195819283, 592809345, 1759625625, 5320769349, 15817342094, 47783816163, 142217596131, 429306813420, 1278945212410

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

Column 1 of A223048

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..189

EXAMPLE

Some solutions for n=3

..1....0....0....0....1....0....0....0....1....2....2....1....1....0....0....2

..0....0....1....2....1....2....1....2....2....0....1....1....2....1....0....2

..2....1....2....1....2....0....0....2....1....2....2....1....2....1....0....2