|
|
A254493
|
|
Number of (3+2)X(n+2) 0..1 arrays with every 3X3 subblock diagonal maximum plus antidiagonal minimum nondecreasing horizontally, vertically and ne-to-sw antidiagonally
|
|
1
|
|
|
19456, 281024, 3912576, 51322752, 656964096, 8552031360, 111699091200, 1451408273792, 18855945794560, 244993609733760, 3183443990624512, 41382824034966400, 538020003594157568, 6993611458624561280
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,1
|
|
COMMENTS
|
|
|
LINKS
|
|
|
FORMULA
|
Empirical recurrence of order 70 (see link above)
|
|
EXAMPLE
|
Some solutions for n=1
..0..1..1....1..0..0....1..1..1....1..1..0....0..0..1....1..0..0....1..1..1
..1..1..0....0..0..0....1..0..0....1..0..0....1..1..1....0..1..1....1..0..0
..0..1..0....0..1..0....1..1..0....0..1..0....0..0..0....1..0..1....0..1..0
..1..1..1....0..1..0....1..1..0....1..0..0....0..0..1....1..0..1....0..1..1
..1..1..1....1..0..0....1..0..0....1..0..1....0..0..1....1..1..1....1..1..1
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|