|
|
A207660
|
|
Number of nX7 0..1 arrays avoiding 0 0 0 and 1 1 1 horizontally and 0 0 1 and 1 0 0 vertically
|
|
1
|
|
|
42, 1764, 8928, 47320, 284272, 1806676, 12327618, 87753008, 651328292, 4960764186, 38639433738, 305186378918, 2437962689512, 19615699465126, 158722646817678, 1289041298468286, 10498617133779346, 85668476633718976
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,1
|
|
COMMENTS
|
|
|
LINKS
|
|
|
EXAMPLE
|
Some solutions for n=4
..0..0..1..0..1..1..0....1..1..0..0..1..1..0....0..1..0..0..1..1..0
..0..0..1..0..1..1..0....1..1..0..1..1..0..1....0..0..1..1..0..1..1
..0..0..1..0..0..1..0....1..1..0..0..1..1..0....0..1..1..0..1..1..0
..0..0..1..0..1..1..0....1..1..0..1..0..0..1....0..1..0..1..1..0..1
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|