OFFSET
1,1
COMMENTS
Row 4 of A221898.
EXAMPLE
Some solutions for n=3
..1..0..1....0..2..0....0..1..2....0..2..1....0..0..2....0..0..0....0..2..1
..0..3..2....1..1..2....2..0..1....2..0..1....4..0..0....2..2..2....1..1..0
..1..0..1....0..0..3....1..0..2....0..2..4....1..0..0....1..0..0....2..2..2
..2..0..1....2..1..0....0..3..0....0..0..0....0..5..0....2..1..2....0..0..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 30 2013
STATUS
approved