|
|
A260000
|
|
Number of (n+2)X(7+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000011 or 00000101
|
|
1
|
|
|
7284, 32525, 112570, 197804, 450718, 1890678, 4405472, 8894577, 30259110, 85219828, 189364182, 533978795, 1526717742, 3840271170, 10224583070, 27687815294, 72927251426, 197908151664, 519999108640, 1358896817375
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,1
|
|
COMMENTS
|
|
|
LINKS
|
|
|
EXAMPLE
|
Some solutions for n=4
..1..1..0..0..1..0..0..0..0....0..1..1..0..1..0..0..0..0
..0..1..0..0..1..1..0..0..0....0..0..0..0..0..0..0..1..0
..0..0..0..0..0..0..0..0..1....0..0..0..0..0..0..0..0..1
..0..0..0..0..0..0..0..0..0....1..1..0..0..1..0..0..0..0
..0..1..0..0..1..1..0..0..1....0..0..0..0..0..1..0..0..0
..1..0..0..0..0..0..0..0..0....0..0..0..0..0..0..0..0..1
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|