|
| |
|
|
A222286
|
|
Number of nX4 0..1 arrays with exactly floor(nX4/2) elements unequal to at least one horizontal or vertical neighbor, with new values introduced in row major 0..1 order
|
|
1
|
|
|
|
3, 11, 35, 208, 1125, 6619, 40321, 250681, 1569385, 9860229, 62350467, 395971584, 2523482587, 16126203359, 103311906743, 663339238220, 4267302505247, 27498492193747, 177468748791963, 1146905501859999, 7421110682709531
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
|
OFFSET
|
1,1
|
|
|
COMMENTS
|
|
|
|
LINKS
|
|
|
|
EXAMPLE
|
Some solutions for n=4
..0..0..0..0....0..0..0..0....0..0..0..0....0..0..1..1....0..1..1..1
..0..0..0..0....0..0..0..0....0..0..1..0....0..1..1..1....1..0..1..1
..0..0..1..1....0..0..1..1....0..0..0..0....0..0..1..1....0..1..1..1
..1..1..1..1....0..0..1..0....1..0..0..0....0..1..1..1....1..1..1..1
|
|
|
CROSSREFS
|
|
|
|
KEYWORD
|
nonn
|
|
|
AUTHOR
|
|
|
|
STATUS
|
approved
|
| |
|
|
