OFFSET
1,3
COMMENTS
Column 3 of A264945.
EXAMPLE
Some solutions for n=4
..0..1..2....0..1..2....0..1..2....0..1..2....0..1..2....0..1..2....0..1..2
..3..0..2....3..0..2....3..2..0....3..0..1....0..1..3....3..1..3....1..2..3
..3..1..3....3..1..3....0..1..3....2..3..0....1..2..3....2..3..0....2..1..3
..1..0..2....0..2..1....1..3..2....1..3..2....2..3..0....2..1..0....0..3..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 29 2015
STATUS
approved