OFFSET
1,2
COMMENTS
Column 3 of A267990.
EXAMPLE
Some solutions for n=4
..2..0..1....0..0..1....0..1..0....0..0..1....0..0..3....0..1..1....0..0..2
..0..1..2....1..1..3....3..1..0....2..0..1....0..2..3....1..2..2....1..0..3
..0..3..3....0..3..2....1..2..3....2..3..2....1..2..2....3..0..2....1..2..2
..3..1..2....2..2..3....2..2..3....1..3..3....3..1..1....0..3..3....1..3..3
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 23 2016
STATUS
approved