|
|
A254452
|
|
Number of (n+2)X(3+2) 0..1 arrays with every 3X3 subblock diagonal maximum minus antidiagonal median nondecreasing horizontally and vertically
|
|
2
|
|
|
16240, 196684, 2085712, 19716320, 180449544, 1621936236, 14531913928, 129887483092, 1161335601368, 10386990863516, 92949534517728, 831971480294236, 7447848925974544, 66677163384618652, 596944337713575200
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,1
|
|
COMMENTS
|
|
|
LINKS
|
|
|
FORMULA
|
Empirical recurrence of order 73 (see link above)
|
|
EXAMPLE
|
Some solutions for n=2
..0..1..1..1..0....0..0..1..0..1....0..1..0..1..0....1..1..1..1..0
..1..1..0..1..0....1..1..1..1..1....0..0..1..1..0....0..0..1..1..1
..0..1..0..0..1....1..1..1..0..0....1..0..0..0..0....1..1..0..0..0
..0..0..1..0..1....0..0..1..0..1....1..0..1..1..0....1..0..0..1..1
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|