OFFSET
1,2
COMMENTS
Column 2 of A209115.
EXAMPLE
Some solutions for n=6:
.-2...-1...-2...-2...-2...-2...-2...-1...-2...-2...-2...-2...-2...-1...-2...-2
..2....0...-2...-1....0....0....1...-1....1....0....0....0....2....0....0....2
..2....0....2....2....2...-1...-1...-1...-1...-1....2...-2....0...-1....0...-2
.-1...-1....1....2....0....0....1....1...-1...-1....1....2...-1....1....0....2
.-1....0....2...-1....1....2....2....2....1....2...-1....0....1...-1....1...-1
..0....2...-1....0...-1....1...-1....0....2....2....0....2....0....2....1....1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 05 2012
STATUS
approved