|
| |
|
|
A207446
|
|
Number of 6Xn 0..1 arrays avoiding 0 0 1 and 0 1 0 horizontally and 0 0 1 and 1 0 0 vertically
|
|
1
|
|
|
|
22, 484, 4048, 32393, 287176, 2405923, 19685415, 162644898, 1341574108, 11023853716, 90632253233, 745371866818, 6127014511151, 50361384430983, 413990430367770, 3403011557477728, 27971925637911848, 229926213789709519
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
|
OFFSET
|
1,1
|
|
|
COMMENTS
|
Row 6 of A207442
|
|
|
LINKS
|
R. H. Hardin, Table of n, a(n) for n = 1..210
|
|
|
EXAMPLE
|
Some solutions for n=4
..0..1..1..1....1..0..0..0....0..1..1..1....1..0..0..0....1..1..0..1
..1..1..0..0....0..1..1..0....1..1..0..1....1..1..0..0....1..1..0..0
..1..1..1..1....1..0..0..0....1..1..1..1....1..0..0..0....1..1..0..1
..0..0..0..0....1..1..1..0....1..0..0..0....1..1..0..0....0..0..0..0
..1..1..1..1....1..0..0..0....0..1..1..1....0..0..0..0....1..1..0..1
..1..0..0..0....1..1..1..0....1..1..1..0....1..1..0..0....1..1..0..0
|
|
|
CROSSREFS
|
Sequence in context: A207503 A207964 A262469 * A223642 A207744 A207721
Adjacent sequences: A207443 A207444 A207445 * A207447 A207448 A207449
|
|
|
KEYWORD
|
nonn
|
|
|
AUTHOR
|
R. H. Hardin Feb 17 2012
|
|
|
STATUS
|
approved
|
| |
|
|
