|
|
A316611
|
|
Number of nXn 0..1 arrays with every element unequal to 0, 1, 3, 5, 7 or 8 king-move adjacent elements, with upper left element zero.
|
|
0
|
|
|
1, 5, 14, 77, 649, 5464, 65158, 1249304, 29420195, 965313430, 47647816201, 3134382222825, 282884293077707
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,2
|
|
COMMENTS
|
|
|
LINKS
|
|
|
EXAMPLE
|
Some solutions for n=5
..0..1..0..0..1. .0..0..1..1..1. .0..1..1..1..1. .0..1..0..0..0
..0..0..0..0..0. .0..0..0..1..1. .1..1..1..1..1. .0..0..0..0..0
..0..0..0..0..0. .0..0..0..0..1. .1..1..1..1..1. .0..0..0..0..0
..0..0..0..0..1. .0..0..0..0..0. .0..1..1..1..1. .1..0..0..0..1
..0..0..0..1..1. .0..1..0..0..0. .0..0..1..1..0. .1..1..0..0..0
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|