|
|
A298581
|
|
Number of nX7 0..1 arrays with every element equal to 1, 2, 4, 5 or 7 king-move adjacent elements, with upper left element zero.
|
|
1
|
|
|
8, 99, 261, 2551, 14482, 90381, 708805, 4703257, 33115108, 242951715, 1717346931, 12261739261, 88279587687, 632361868337, 4531624593058, 32509115649588, 233191927798253, 1672553903049280, 11995741170036801, 86046219903357310
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,1
|
|
COMMENTS
|
|
|
LINKS
|
|
|
EXAMPLE
|
Some solutions for n=5
..0..1..1..0..0..0..1. .0..1..1..0..1..0..0. .0..1..1..0..1..1..1
..0..1..0..0..0..1..1. .0..1..0..0..1..0..1. .0..0..1..0..1..0..1
..1..1..0..0..0..0..0. .1..1..0..0..0..0..1. .1..1..1..1..1..0..0
..0..0..0..1..0..1..0. .1..1..0..0..0..0..0. .0..0..1..1..1..0..0
..1..1..0..1..0..1..1. .1..0..1..1..1..1..1. .0..1..1..1..0..1..0
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|