OFFSET
1,1
COMMENTS
Row 7 of A220044.
EXAMPLE
Some solutions for n=3
..0..0..0....1..0..1....1..0..0....0..0..0....1..0..0....2..0..0....1..1..1
..0..0..0....1..0..0....1..0..1....0..0..0....1..0..0....2..0..0....1..1..1
..1..0..2....1..0..0....2..1..1....1..0..3....2..0..2....2..0..2....2..0..3
..1..0..0....2..0..1....2..1..2....1..1..1....0..2..0....2..2..2....3..0..0
..2..0..3....2..1..3....1..1..1....1..1..1....0..0..0....1..0..1....3..0..0
..2..2..3....3..1..1....1..1..1....1..0..1....0..0..0....1..0..0....3..0..0
..3..2..2....3..1..3....1..2..1....1..0..0....0..2..0....1..0..0....3..0..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 03 2012
STATUS
approved