|
| |
|
|
A185611
|
|
Number of (n+1)X3 0..2 arrays with every 2X2 subblock sum equal to some horizontal or vertical neighbor 2X2 subblock sum
|
|
1
|
|
|
|
171, 2121, 24993, 313105, 3959747, 50512903, 646053371, 8287005157, 106415024441, 1368098434721, 17598078326551, 226486740265787, 2915699882756875, 37545244543350913, 483541481413780309
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
|
OFFSET
|
1,1
|
|
|
COMMENTS
|
|
|
|
LINKS
|
|
|
|
EXAMPLE
|
Some solutions for 5X3
..0..2..0....0..2..0....0..0..0....0..2..1....0..0..2....0..2..1....0..2..0
..2..0..0....1..1..1....1..0..1....1..2..2....0..1..0....2..2..1....1..0..1
..2..0..2....1..2..1....1..1..1....0..2..1....0..0..2....1..0..2....2..2..2
..0..2..1....1..1..1....1..1..1....2..2..1....1..0..2....2..1..2....0..1..0
..1..2..0....0..1..0....0..0..0....1..1..2....0..0..2....1..0..2....2..0..2
|
|
|
CROSSREFS
|
|
|
|
KEYWORD
|
nonn
|
|
|
AUTHOR
|
|
|
|
STATUS
|
approved
|
| |
|
|
