|
|
A190024
|
|
Number of (n+2)X(n+2) binary arrays with every 3X3 subblock commuting with each horizontal and vertical neighbor 3X3 subblock
|
|
1
|
|
|
512, 45, 158, 458, 834, 1230, 1910, 3018, 5102, 9706, 18522, 34606, 65258, 119934, 217210, 400266, 736570, 1351694, 2506658, 4638314, 8542346, 15797722, 29180334, 53760774, 99319938, 183479122, 338452838, 625204870, 1154917550, 2131346658
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,1
|
|
COMMENTS
|
|
|
LINKS
|
|
|
EXAMPLE
|
Some solutions for 4X4
..0..0..0..0....1..0..0..1....0..0..0..0....0..0..0..0....0..0..0..0
..0..0..0..1....0..1..0..0....1..0..0..0....1..0..0..0....1..0..0..0
..0..0..0..0....0..0..1..0....0..1..0..0....1..1..0..0....1..1..0..0
..0..0..0..0....0..0..0..1....0..0..1..0....1..1..1..0....0..1..1..0
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|