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A223749
Number of nX4 0..3 arrays with every row least squares fitting to a positive slope straight line and every column least squares fitting to a zero or positive slope straight line, with a single point array taken as having zero slope
0
117, 2826, 330642, 21965901, 2810374281, 252313355237, 32063498387856, 3229688051024065, 404471979822899781
OFFSET
1,1
COMMENTS
Column 3 of A223751
EXAMPLE
Some solutions for n=3
..0..0..2..0....0..0..2..0....0..0..2..0....0..0..2..2....0..0..0..2
..2..2..3..3....1..0..2..3....2..1..0..3....1..0..3..1....1..1..2..2
..0..1..3..1....1..1..2..2....0..1..2..2....0..2..3..3....2..0..3..3
CROSSREFS
Sequence in context: A233051 A278774 A219990 * A218416 A027511 A203626
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 27 2013
STATUS
approved