OFFSET
1,3
COMMENTS
Column 2 of A266042.
EXAMPLE
Some solutions for n=4
..2..2....3..0....0..0....3..3....3..2....1..2....2..2....3..2....2..0....3..3
..3..0....1..1....2..1....1..1....3..0....3..0....0..0....2..0....2..1....2..1
..1..1....3..0....3..3....0..0....1..0....2..1....1..1....0..1....0..3....0..0
..0..3....2..2....2..1....2..2....1..2....0..3....3..3....1..3....1..3....1..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 20 2015
STATUS
approved