|
|
A298568
|
|
Number of n X n 0..1 arrays with every element equal to 0, 2, 4, 5 or 7 king-move adjacent elements, with upper left element zero.
|
|
0
|
|
|
1, 4, 1, 3, 480, 174, 2888, 582062, 939451, 50950770, 21558889086
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,2
|
|
COMMENTS
|
|
|
LINKS
|
|
|
EXAMPLE
|
Some solutions for n=5
..0..0..1..1..1. .0..1..1..1..1. .0..1..0..0..1. .0..1..1..1..0
..1..0..1..0..1. .1..1..1..1..0. .1..1..0..1..1. .0..0..1..1..1
..1..1..1..1..1. .1..1..1..0..0. .0..0..0..0..0. .1..1..1..1..1
..1..1..1..0..0. .0..1..1..1..1. .0..1..1..0..1. .0..1..1..1..0
..1..0..1..0..1. .1..1..1..1..0. .0..0..1..0..0. .1..1..1..0..0
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|