OFFSET
1,1
COMMENTS
Column 5 of A223052
EXAMPLE
Some solutions for n=3
..0..0..1..2..0....0..0..1..2..1....0..0..1..2..1....0..0..1..2..3
..3..0..1..3..2....2..0..3..3..1....0..0..3..0..2....3..0..1..1..3
..1..0..3..0..1....3..0..2..1..0....1..0..1..0..3....1..2..1..0..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 13 2013
STATUS
approved