|
|
A305287
|
|
Number of nX7 0..1 arrays with every element unequal to 1, 2, 3, 4 or 8 king-move adjacent elements, with upper left element zero.
|
|
1
|
|
|
8, 4184, 13289, 246893, 1847322, 21092843, 214220078, 2256259549, 24509450800, 259901782836, 2843507124392, 30631168228754, 334342089367106, 3634031836968663, 39621260318244162, 432105418816370549
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,1
|
|
COMMENTS
|
|
|
LINKS
|
|
|
EXAMPLE
|
Some solutions for n=5
..0..0..1..0..0..1..0. .0..0..1..0..1..1..0. .0..0..1..0..0..1..0
..0..1..1..0..0..0..1. .0..1..1..1..0..0..0. .0..1..1..0..0..0..1
..0..1..1..1..0..0..0. .0..1..1..0..0..0..1. .0..1..1..1..0..0..0
..0..1..1..1..1..0..0. .0..0..1..0..0..0..1. .0..1..1..1..0..0..0
..1..0..0..1..1..1..1. .0..1..0..1..0..0..0. .1..0..0..0..1..0..1
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|