OFFSET
1,1
COMMENTS
Diagonal of A183508
EXAMPLE
Some solutions for 3X3
..2..2..3....1..2..2....2..3..0....0..3..1....3..0..2....3..1..0....2..1..3
..3..0..3....2..1..1....0..0..0....2..1..0....1..0..1....0..1..2....3..1..0
..2..1..1....1..2..1....0..2..3....0..3..1....3..1..1....2..3..3....3..2..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 05 2011
STATUS
approved