OFFSET
1,3
COMMENTS
Column 3 of A266861.
EXAMPLE
Some solutions for n=4
..0..3..1....0..2..0....0..2..3....0..2..3....0..2..0....0..1..0....0..2..3
..0..1..0....3..2..3....2..0..1....2..0..1....0..1..2....3..1..3....2..1..1
..2..1..3....2..0..1....1..2..3....1..2..3....2..3..1....2..1..3....2..3..1
..2..3..2....1..3..1....3..0..1....0..1..3....1..3..3....2..0..2....0..3..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 04 2016
STATUS
approved