|
|
A223960
|
|
Number of nX7 0..3 arrays with antidiagonals unimodal and rows and diagonals nondecreasing
|
|
1
|
|
|
120, 7470, 217144, 4500818, 85350934, 1629022329, 31770135236, 629825651180, 12620835427126, 254719515611821, 5165793380135728, 105110696722615853, 2143594088287821599, 43784293043682987873, 895295525455930993505
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,1
|
|
COMMENTS
|
|
|
LINKS
|
|
|
EXAMPLE
|
Some solutions for n=3
..0..0..0..0..2..3..3....0..0..0..0..0..2..2....0..0..0..0..0..1..2
..0..1..1..1..2..3..3....0..0..1..1..2..2..2....0..0..1..2..2..2..3
..0..0..1..1..1..3..3....0..2..2..2..2..2..3....0..0..1..2..2..3..3
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|