|
|
A283724
|
|
Number of nX6 0..1 arrays with no 1 equal to more than two of its horizontal, diagonal and antidiagonal neighbors, with the exception of exactly one element.
|
|
1
|
|
|
0, 1032, 56106, 2258212, 83987692, 2938694472, 99246546144, 3267618010712, 105565418525004, 3361146348020960, 105782383857436330, 3297885696243120040, 102011782806299147034, 3134659055255537785816, 95779471363270179461976
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,2
|
|
COMMENTS
|
|
|
LINKS
|
|
|
EXAMPLE
|
Some solutions for n=3
..1..1..0..1..0..0. .0..1..1..0..0..1. .0..0..1..1..1..1. .1..1..0..1..0..1
..1..1..0..0..0..0. .0..0..0..1..0..1. .1..0..1..0..0..0. .1..0..0..1..1..0
..1..0..0..0..1..1. .1..1..1..1..0..1. .0..0..0..1..0..0. .1..1..0..0..1..0
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|