|
| |
|
|
A232302
|
|
Number of n X n 0..2 arrays with every 0 next to a 1 and every 1 next to a 2 horizontally, vertically or antidiagonally
|
|
0
|
|
|
|
1, 37, 5149, 6363511, 66287652717, 5637591065064585, 3953611274692252664219, 22845060732287997693078487339, 1087328305739985850553848837289874701, 426327214385010895269748977017138080515645751
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
|
OFFSET
|
1,2
|
|
|
COMMENTS
|
|
|
|
LINKS
|
|
|
|
EXAMPLE
|
Some solutions for n=3
..1..2..2....0..1..1....2..1..1....1..2..0....2..2..2....1..2..0....2..1..0
..1..2..1....1..2..0....2..0..2....2..1..1....2..0..1....0..0..1....1..1..2
..0..2..2....0..2..1....2..2..1....2..2..0....1..2..2....2..0..2....0..0..2
|
|
|
CROSSREFS
|
|
|
|
KEYWORD
|
nonn
|
|
|
AUTHOR
|
|
|
|
STATUS
|
approved
|
| |
|
|
