OFFSET
1,2
COMMENTS
Column 2 of A208814.
EXAMPLE
Some solutions for n=6:
.-1...-2...-2...-2...-2...-2...-1...-2...-2...-2...-2...-2...-2...-1...-1...-2
.-1...-1...-1....1....1....2...-1....1....0...-1....0...-1....1...-1...-1...-1
..0....2....1....0....2...-1....2....1....1....1...-1....1....0....1....0....1
..0....1....2....1...-1....0....0....1....0....2....2....1...-1....1....2....0
..1...-1....1...-1....1....1...-1...-1....0...-1....1....2....2...-1...-1....0
..1....1...-1....1...-1....0....1....0....1....1....0...-1....0....1....1....2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 01 2012
STATUS
approved