OFFSET
1,1
COMMENTS
Column 4 of A223165
EXAMPLE
Some solutions for n=3
..0..0..0..0....0..0..0..1....1..0..0..2....0..0..0..3....0..0..0..1
..1..0..1..1....1..2..0..2....0..1..3..0....1..0..1..2....2..1..2..2
..1..0..3..1....0..0..1..3....1..0..2..2....3..1..2..3....1..1..2..3
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 16 2013
STATUS
approved