OFFSET
1,3
COMMENTS
Column 2 of A266309.
EXAMPLE
Some solutions for n=4
..0..2....0..2....0..3....0..2....0..0....0..0....0..2....0..3....0..0....0..3
..1..1....1..0....2..0....2..0....1..3....1..3....3..1....0..3....3..1....0..3
..2..0....3..2....2..1....1..3....3..1....1..3....0..3....1..1....1..3....2..1
..3..3....3..1....1..3....1..3....2..2....2..2....2..1....2..2....2..2....2..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 26 2015
STATUS
approved