|
|
A182236
|
|
T(n,k)=Number of n X n 0..n+k-2 arrays with new values 0 upwards introduced in row major order and every value unique in its row and column
|
|
0
|
|
|
1, 1, 1, 1, 3, 2, 1, 4, 44, 24, 1, 4, 230, 4920, 1344, 1, 4, 464, 190452, 6050304, 1128960, 1, 4, 569, 1760316
(list;
table;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,5
|
|
COMMENTS
|
Table starts
.......1.......1......1.......1...1.1.1
.......1.......3......4.......4...4.4
.......2......44....230.....464.569
......24....4920.190452.1760316
....1344.6050304
.1128960
|
|
LINKS
|
|
|
EXAMPLE
|
Some solutions for n=4 k=4
..0..1..2..3....0..1..2..3....0..1..2..3....0..1..2..3....0..1..2..3
..1..2..0..4....1..0..3..4....2..3..1..4....1..0..3..4....2..3..1..0
..4..5..1..0....4..2..5..0....4..0..5..6....2..3..1..5....4..5..3..2
..2..6..3..5....5..3..4..6....5..4..0..1....6..2..4..0....1..6..4..5
|
|
CROSSREFS
|
|
|
KEYWORD
|
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|