|
|
A207314
|
|
Number of nX5 0..2 arrays avoiding the pattern z-2 z-1 z in any row, column or nw-to-se diagonal
|
|
1
|
|
|
216, 46656, 7791488, 1274682671, 205235353935, 32960886054362, 5287481507599689, 847996342709895834, 135988221568912041664, 21807179762496937194845, 3496992901399897131806933
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,1
|
|
COMMENTS
|
|
|
LINKS
|
|
|
EXAMPLE
|
Some solutions for n=4
..0..2..0..1..0....0..1..0..2..2....1..2..2..1..2....2..1..0..2..1
..0..1..0..0..2....2..0..1..0..0....0..1..1..2..1....2..2..1..1..0
..1..1..0..0..0....1..1..0..1..0....1..0..1..0..0....1..1..0..0..0
..1..2..0..2..1....1..1..2..0..2....1..1..2..0..2....0..0..2..0..0
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|