|
|
A267963
|
|
Number of nX4 0..2 arrays with every repeated value in every row and column greater than the previous repeated value.
|
|
1
|
|
|
63, 3969, 157182, 5843562, 185900905, 5520230601, 151596664089, 3948855568663, 97889332200024, 2332332672746881, 53631396879772976, 1196249503631460096, 25965520951599991001, 550166212967293315266, 11406213718800127365141
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,1
|
|
COMMENTS
|
|
|
LINKS
|
|
|
EXAMPLE
|
Some solutions for n=3
..2..0..2..1....0..0..2..0....2..0..2..0....2..0..1..2....0..1..0..1
..2..2..1..0....0..0..1..2....0..2..1..2....1..1..2..1....0..2..2..1
..1..2..0..1....1..2..0..1....2..0..2..0....0..0..1..2....2..2..1..0
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|