OFFSET
1,3
COMMENTS
Column 4 of A265663.
EXAMPLE
Some solutions for n=4
..3..2..0..1....3..2..0..2....1..0..0..1....2..2..3..1....1..3..1..0
..3..3..2..0....2..3..1..0....3..2..2..0....2..0..2..0....1..3..3..2
..1..1..0..2....2..3..1..0....1..3..3..1....3..1..0..1....0..2..3..2
..3..1..0..2....3..1..0..1....0..2..2..3....3..3..1..0....2..0..1..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 12 2015
STATUS
approved