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