|
| |
|
|
A283725
|
|
Number of nX7 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, 4220, 369328, 25260000, 1590274565, 94357463834, 5410290101514, 302490564406270, 16600142770401845, 897968848303855396, 48020384269733267214, 2544060241155707255130, 133737173204786854881261
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
|
OFFSET
|
1,2
|
|
|
COMMENTS
|
|
|
|
LINKS
|
|
|
|
EXAMPLE
|
Some solutions for n=2
..0..1..1..0..1..1..1. .0..0..1..1..1..1..0. .1..0..0..0..0..1..1
..1..0..0..0..1..0..1. .0..1..1..0..1..0..0. .1..1..1..1..0..0..0
|
|
|
CROSSREFS
|
|
|
|
KEYWORD
|
nonn
|
|
|
AUTHOR
|
|
|
|
STATUS
|
approved
|
| |
|
|
