A223819 - OEIS

A223819

Number of nX1 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

4, 4, 16, 22, 112, 172, 1064, 1742, 11664, 19976, 138640, 243802, 1732272, 3104312, 22419608, 40745940, 297918608, 547354320, 4040882352, 7488584886, 55716851136, 103984450924, 778639744064, 1461701983398, 11004152490272, 20759785009832

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

OFFSET

1,1

COMMENTS

Column 1 of A223824

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..199

EXAMPLE

Some solutions for n=4

..0....0....2....3....3....2....1....2....1....3....2....1....1....2....3....0

..0....3....2....1....0....0....0....1....2....3....3....0....1....0....2....3

..0....0....2....1....3....0....0....1....2....3....3....3....1....3....2....3