OFFSET
1,1
COMMENTS
Diagonal of A183642
EXAMPLE
Some solutions for 3X3
..1..1..0....0..2..0....2..2..2....3..1..0....1..1..1....2..0..2....1..3..1
..1..3..2....1..3..1....1..1..1....0..2..3....2..2..2....3..1..3....0..2..0
..1..1..0....2..0..2....3..1..3....3..1..0....2..0..2....0..2..0....1..3..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 06 2011
STATUS
approved