OFFSET
1,3
COMMENTS
Column 3 of A265679.
EXAMPLE
Some solutions for n=4
..0..1..0....0..1..2....0..1..0....0..1..2....0..1..2....0..1..2....0..1..2
..2..3..1....3..0..3....2..3..2....3..3..1....3..3..1....3..0..3....2..0..1
..0..2..2....1..1..2....1..1..0....1..0..0....0..2..2....2..1..1....3..2..0
..1..3..3....2..3..0....3..3..2....3..2..2....1..0..3....3..2..0....1..3..3
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 13 2015
STATUS
approved