OFFSET
1,2
COMMENTS
Row 4 of A265089.
EXAMPLE
Some solutions for n=4
..1..3..2..0....0..2..3..1....3..2..1..0....3..0..3..0....0..1..2..3
..2..0..3..1....0..1..2..3....0..1..3..2....1..2..1..2....3..2..1..0
..3..1..0..2....3..2..1..0....1..0..2..3....2..1..0..3....2..0..3..1
..0..2..1..3....3..1..0..2....2..3..0..1....0..3..2..1....1..3..0..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 01 2015
STATUS
approved