OFFSET
1,1
COMMENTS
Row 5 of A222906
EXAMPLE
Some solutions for n=3
..0..0..1....0..1..1....0..0..1....0..0..0....0..1..2....0..0..0....0..0..1
..0..0..0....1..1..1....2..3..3....0..0..0....2..1..1....0..0..0....2..0..0
..0..0..0....1..1..0....3..3..3....1..0..2....0..1..1....1..2..0....0..3..3
..1..1..1....1..1..2....3..3..0....1..0..0....1..1..1....2..2..2....3..3..3
..1..1..1....1..1..1....3..3..3....0..0..0....1..1..1....2..2..2....3..3..3
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 09 2013
STATUS
approved