|
|
A268016
|
|
Number of nX4 0..2 arrays with every repeated value in every row and column greater than or equal to the previous repeated value.
|
|
1
|
|
|
78, 6084, 474552, 31831908, 2012075697, 119453097281, 6761580343329, 367501986337710, 19300005472710895, 983989084426524929, 48888960624425750151, 2374418848334124952354, 113014440791056538695922
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,1
|
|
COMMENTS
|
|
|
LINKS
|
|
|
EXAMPLE
|
Some solutions for n=2
..2..1..0..0....2..1..2..1....0..2..2..2....2..1..1..1....0..2..1..1
..2..1..0..2....0..1..0..2....1..0..2..1....2..0..2..2....2..0..1..1
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|