|
| |
|
|
A253405
|
|
Number of (n+1) X (6+1) 0..2 arrays with every 2 X 2 subblock diagonal maximum plus antidiagonal minimum unequal to its neighbors horizontally, vertically and ne+sw antidiagonally.
|
|
1
|
|
|
|
646240, 638602, 1489310, 7437150, 30756372, 196170260, 954233428, 4184013494, 23948788480, 123736222078, 533052293254, 3116669936220, 15687449192482, 68617590941736, 395367044525650, 2007468414696700, 8759855652090420
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
|
OFFSET
|
1,1
|
|
|
COMMENTS
|
|
|
|
LINKS
|
|
|
|
EXAMPLE
|
Some solutions for n=1
..2..0..1..0..1..2..0....1..0..1..0..0..2..0....0..0..0..0..1..2..1
..2..2..2..0..0..1..1....1..0..0..2..0..1..1....2..1..0..2..0..2..2
|
|
|
CROSSREFS
|
|
|
|
KEYWORD
|
nonn
|
|
|
AUTHOR
|
|
|
|
STATUS
|
approved
|
| |
|
|
