|
|
A207465
|
|
Number of nX6 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 1 0 and 1 0 1 vertically
|
|
1
|
|
|
18, 324, 1504, 11760, 71928, 491948, 3205650, 21396734, 141284580, 937096086, 6200491878, 41068721206, 271907375738, 1800712574474, 11924220367590, 78964416331158, 522900715972816, 3462653747527630, 22929637855256258
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,1
|
|
COMMENTS
|
|
|
LINKS
|
|
|
EXAMPLE
|
Some solutions for n=4
..1..1..1..1..1..1....1..0..1..0..1..0....0..1..0..1..0..0....0..1..0..1..0..1
..1..1..1..1..0..1....0..0..1..0..0..1....1..0..0..1..0..0....1..0..1..0..1..0
..1..1..1..1..0..0....0..0..1..0..0..1....1..0..0..1..0..0....1..0..1..0..1..0
..1..1..1..0..1..0....1..0..0..1..0..1....0..1..0..0..1..0....0..1..0..0..1..0
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|