OFFSET
1,1
COMMENTS
Diagonal of A184081
EXAMPLE
Some solutions for 4X4
..0..1..1..1....0..1..1..2....0..0..0..2....0..0..1..1....0..0..1..2
..1..1..1..1....1..1..1..0....0..1..1..0....0..1..0..1....0..1..0..0
..1..1..1..2....1..1..2..1....1..0..1..1....0..1..1..1....1..0..2..0
..2..1..2..1....2..0..2..0....1..0..2..0....2..0..1..0....2..0..1..0
...
...3..4..4.......3..4..4.......1..2..3.......1..2..3.......1..2..3...
...4..4..5.......4..5..4.......2..3..3.......2..3..3.......2..3..2...
...5..5..6.......4..5..5.......2..3..4.......3..3..3.......3..3..3...
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 09 2011
STATUS
approved