OFFSET
1,2
COMMENTS
Column 3 of A264954.
EXAMPLE
Some solutions for n=4
..3..1..2....3..2..0....0..3..1....1..0..2....1..3..1....2..0..3....0..3..0
..1..3..0....2..1..2....1..0..2....0..2..3....0..1..2....1..3..1....3..0..1
..0..1..2....3..0..1....2..3..0....3..1..0....2..3..0....3..0..2....2..1..2
..2..3..0....1..3..0....3..1..2....1..3..2....3..0..2....2..1..0....1..2..3
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 29 2015
STATUS
approved