OFFSET
1,2
COMMENTS
Row 5 of A221609
EXAMPLE
Some solutions for n=3
..0..2..1....1..1..0....0..2..1....0..2..1....0..2..2....0..2..1....0..2..1
..1..2..0....1..3..0....1..2..0....1..2..1....0..2..1....0..2..1....1..3..0
..0..3..1....0..2..1....0..3..1....0..3..0....0..2..0....0..2..0....0..1..2
..1..0..0....0..2..2....0..1..1....0..1..1....1..2..0....2..2..0....0..3..0
..1..3..0....0..2..0....1..2..0....0..2..1....1..2..0....1..2..0....0..1..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 20 2013
STATUS
approved