OFFSET
1,1
COMMENTS
Column 3 of A221776
EXAMPLE
Some solutions for n=3
..0..2..3....1..0..0....0..0..1....0..2..3....1..2..0....1..1..2....0..2..2
..1..1..0....0..1..2....3..0..0....1..0..1....1..1..2....0..0..1....2..1..1
..2..0..0....3..0..2....1..1..3....1..1..0....2..0..0....2..0..2....0..1..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 25 2013
STATUS
approved