|
|
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
|
|
|
|
OFFSET
|
1,1
|
|
COMMENTS
|
|
|
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
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|