|
|
A304296
|
|
Number of n X n 0..1 arrays with every element unequal to 1, 2, 5 or 8 king-move adjacent elements, with upper left element zero.
|
|
0
|
|
|
0, 3, 3, 4, 62, 237, 2673, 47501, 555463, 25873708, 782284349, 32914635985, 3458153456492, 263002178989873, 36033069960036119
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,2
|
|
COMMENTS
|
|
|
LINKS
|
|
|
EXAMPLE
|
Some solutions for n=5
..0..0..0..1..0. .0..0..0..0..0. .0..0..0..1..0. .0..0..1..0..0
..1..0..0..0..0. .1..0..1..0..1. .0..1..0..0..0. .1..0..0..0..1
..0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..1. .0..0..0..0..0
..1..0..0..1..0. .0..0..0..0..0. .0..0..0..0..0. .0..1..0..0..0
..0..0..0..0..0. .0..1..0..1..0. .0..1..0..1..0. .0..0..0..1..0
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|