OFFSET
1,1
COMMENTS
Row 3 of A187670
EXAMPLE
Some n=3 solutions for 4X4
..0..1..1..2....0..2..2..2....0..2..2..3....0..2..2..2....2..1..1..2
..2..0..2..3....2..0..3..0....2..0..2..1....3..0..3..1....1..0..2..2
..3..1..0..1....2..3..0..2....0..2..0..2....0..2..0..2....2..2..0..1
..1..0..2..1....2..0..2..1....2..2..2..1....2..1..3..3....3..2..1..3
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 12 2011
STATUS
approved