|
|
A207853
|
|
Number of n X n 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 1 0 and 1 0 1 vertically
|
|
1
|
|
|
2, 16, 102, 1369, 44121, 2934369, 298294290, 56804048896, 22612514662790, 17183745725983369, 23510773704878179041, 60748271137827940655041, 304386527035085508883292036, 2891218911926091087027201634564
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,1
|
|
COMMENTS
|
|
|
LINKS
|
|
|
EXAMPLE
|
Some solutions for n=4
..1..0..0..1....1..0..0..1....1..0..1..1....1..0..1..1....0..0..1..1
..0..0..1..1....1..1..1..1....0..0..1..1....1..1..0..1....1..1..1..0
..0..0..1..1....1..1..1..1....0..0..1..1....1..1..0..0....1..1..1..0
..0..0..1..1....1..0..1..1....1..0..0..1....0..1..1..0....1..1..0..1
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|