OFFSET
1,3
COMMENTS
Column 2 of A266599.
EXAMPLE
Some solutions for n=4
..0..2....0..0....0..1....0..1....0..3....0..1....0..1....0..3....0..2....0..1
..2..1....2..3....3..0....3..3....2..2....3..0....3..1....2..2....0..1....0..3
..1..0....1..3....3..2....2..2....1..1....2..3....3..0....1..1....3..3....3..2
..3..3....1..2....1..2....1..0....0..3....2..1....2..2....3..0....1..2....2..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 01 2016
STATUS
approved