OFFSET
1,1
COMMENTS
Column 5 of A223041
EXAMPLE
Some solutions for n=3
..0..0..1..2..2....0..0..1..0..2....0..0..1..2..2....0..0..1..0..1
..2..0..0..3..0....0..0..3..0..3....2..0..3..0..1....2..0..1..2..0
..0..3..1..3..2....1..2..2..1..3....1..0..2..1..2....1..0..3..0..3
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 12 2013
STATUS
approved