OFFSET
1,2
COMMENTS
Row 5 of A221200
EXAMPLE
Some solutions for n=3
..2..2..0....0..2..0....0..2..1....1..2..1....0..2..1....0..2..0....0..2..0
..1..2..0....1..2..1....1..2..0....1..2..0....0..2..0....2..2..0....2..2..1
..0..2..1....0..2..0....1..2..0....0..2..1....1..2..1....1..2..1....1..2..0
..0..2..0....0..2..1....0..2..0....0..2..1....1..2..0....0..2..1....0..2..0
..0..2..1....2..2..0....1..2..1....0..2..0....0..2..1....0..2..0....1..2..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 04 2013
STATUS
approved