OFFSET
1,2
COMMENTS
Column 3 of A265870.
EXAMPLE
Some solutions for n=4
..2..3..0....0..0..3....3..3..2....3..1..2....1..3..0....3..3..0....0..1..0
..1..1..3....2..1..1....2..2..1....1..0..1....2..2..1....3..2..1....3..2..1
..1..2..2....3..3..2....0..1..3....0..3..0....3..1..2....2..1..1....3..0..3
..3..0..0....1..2..0....0..1..0....2..2..3....0..0..3....0..0..2....2..2..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 17 2015
STATUS
approved