|
|
A238926
|
|
Number of (n+1)X(4+1) 0..3 arrays with no element greater than all horizontal neighbors or equal to all vertical neighbors
|
|
1
|
|
|
5008, 191086, 25080064, 2531484558, 265992385206, 27816714540010, 2912187511240098, 304661966072695432, 31883006383052084900, 3336384421665707208520, 349125379127023083318084
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,1
|
|
COMMENTS
|
|
|
LINKS
|
|
|
EXAMPLE
|
Some solutions for n=2
..1..2..2..2..1....0..1..1..2..2....0..0..3..3..0....2..2..2..1..1
..0..0..0..0..0....1..3..3..3..3....1..2..2..2..2....3..3..0..2..2
..2..2..2..3..3....2..2..2..2..0....0..0..3..3..0....1..2..2..3..3
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|