OFFSET
1,2
COMMENTS
Diagonal of A183541
EXAMPLE
Some solutions for 3X3
..0..2..2....2..2..0....0..3..1....3..0..0....0..1..0....2..1..2....0..1..3
..2..3..0....0..1..2....1..1..2....0..3..0....3..1..3....1..2..0....3..3..2
..2..0..3....2..2..1....0..3..1....0..0..0....1..2..1....2..0..0....0..1..3
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 05 2011
STATUS
approved