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A222995 Number of nX4 0..2 arrays with successive rows and columns fitting to straight lines with nondecreasing slope, with a single point array taken as having zero slope 0
81, 867, 35845, 703848, 19187708, 342820859, 6895486778, 107560020020, 1764791619523 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 4 of A222996
LINKS
EXAMPLE
Some solutions for n=3
..1..1..2..0....2..0..0..1....1..2..2..2....1..1..0..0....2..2..2..0
..2..2..0..2....0..1..2..2....1..0..1..2....0..1..1..1....0..1..2..1
..0..1..2..0....0..0..1..2....0..1..1..2....0..2..1..2....0..0..1..2
CROSSREFS
Sequence in context: A045792 A067478 A076749 * A173810 A205047 A086580
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 11 2013
STATUS
approved

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Last modified March 28 05:39 EDT 2024. Contains 371235 sequences. (Running on oeis4.)