VOOZH about

URL: https://oeis.org/A223753

⇱ A223753 - OEIS

login
A223753
Number of 2X(n+1) 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.
1
20, 200, 2826, 26980, 308268, 2964940, 31799477, 308289440, 3225261237, 31480928780, 325138005739, 3188808158080, 32682606118057, 321645620626780, 3280008824707825, 32362636113497810, 328859264823219200
OFFSET
1,1
COMMENTS
Row 2 of A223751
LINKS
EXAMPLE
Some solutions for n=3
..1..0..2..1....0..1..2..2....1..1..1..2....0..2..2..3....0..2..0..1
..2..0..3..3....0..1..2..3....1..2..2..2....1..3..2..3....0..3..1..2
CROSSREFS
Sequence in context: A383911 A120796 A120787 * A099197 A041766 A121088
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 27 2013
STATUS
approved