login
A223162
Number of nX3 0..3 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
1
40, 500, 20000, 540154, 22935840, 767019352, 32485035360, 1174139120817, 49199105599520, 1839627554609556, 76345375355319840, 2907464848035165537, 119821953022067499840, 4614897889020078836652, 189215751229818514619280
OFFSET
1,1
COMMENTS
Column 3 of A223165
LINKS
EXAMPLE
Some solutions for n=3
..0..1..1....0..0..0....0..0..1....0..1..2....0..0..3....0..1..2....0..1..0
..0..3..3....1..2..1....1..3..3....1..1..1....1..1..2....0..2..1....0..1..3
..1..1..3....0..2..1....2..1..3....2..2..2....1..1..3....1..3..2....1..1..3
CROSSREFS
Sequence in context: A177096 A202902 A140045 * A069079 A093744 A109105
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 16 2013
STATUS
approved