OFFSET
1,1
COMMENTS
Column 3 of A209720
EXAMPLE
Some solutions for n=3
..1..3..0....2..1..2....2..0..0....2..2..2....2..1..2....4..2..0....3..2..2
..1..1..0....1..1..0....1..1..0....1..1..2....2..1..2....0..2..2....1..1..3
..0..1..3....2..0..2....2..0..2....2..1..0....1..1..1....2..0..4....3..2..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 12 2012
STATUS
approved