OFFSET
1,3
COMMENTS
Column 2 of A266861.
EXAMPLE
Some solutions for n=4
..0..3....0..2....0..1....0..2....0..0....0..2....0..2....0..2....0..1....0..3
..3..2....0..2....2..0....3..1....2..3....3..2....0..1....3..1....2..0....0..1
..2..1....3..1....1..3....3..1....1..3....3..1....2..3....3..0....2..3....2..1
..1..0....1..3....3..2....2..0....1..2....1..0....1..3....1..2....1..3....2..3
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 04 2016
STATUS
approved