|
|
A253996
|
|
Number of (4+2)X(n+2) 0..1 arrays with every 3X3 subblock diagonal median plus antidiagonal median nondecreasing horizontally, vertically and ne-to-sw antidiagonally
|
|
1
|
|
|
51856, 406183, 3678188, 30663580, 266574705, 2365554897, 20976836853, 183417881138, 1611843610363, 14153919020809, 124080618908089, 1086470007661388, 9513144466402410, 83219752120736303, 727529183808379802
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,1
|
|
COMMENTS
|
|
|
LINKS
|
|
|
EXAMPLE
|
Some solutions for n=1
..0..0..0....0..0..0....0..0..0....1..1..0....0..0..0....1..1..0....1..0..0
..1..1..0....0..0..0....0..1..0....1..0..1....0..0..0....1..0..1....0..1..1
..0..1..1....1..0..0....0..1..1....1..1..1....0..0..1....1..0..0....0..1..1
..0..1..1....0..0..0....1..1..0....1..0..1....0..0..0....0..1..1....1..1..0
..0..0..0....1..1..0....0..0..0....1..0..1....0..0..0....1..1..1....1..1..1
..1..0..0....1..1..0....1..0..1....1..0..1....1..1..1....1..1..1....1..0..0
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|