|
|
A266159
|
|
Number of 4Xn arrays containing n copies of 0..4-1 with no element plus any horizontal, vertical or antidiagonal neighbor equal to 4-1.
|
|
1
|
|
|
8, 16, 40, 272, 5512, 149232, 3741272, 88206664, 2011246768, 44947984536, 994530883200, 21910419274224, 482270052357104, 10627338833274072, 234722322559349072, 5199318920693106784, 115536868266599859880
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,1
|
|
COMMENTS
|
|
|
LINKS
|
|
|
EXAMPLE
|
Some solutions for n=6
..0..1..3..2..0..2....0..1..3..2..2..0....0..0..2..2..2..3....1..3..3..3..2..2
..1..3..3..2..0..0....1..1..3..3..2..0....1..0..2..3..3..1....1..3..2..2..0..0
..3..3..2..0..1..1....1..1..3..3..2..0....0..2..3..3..1..0....1..3..2..0..1..0
..2..2..0..1..1..3....1..3..2..2..0..0....0..2..3..1..1..1....3..2..0..1..1..0
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|