OFFSET
1,2
COMMENTS
Column 4 of A208814.
EXAMPLE
Some solutions for n=6:
.-3...-2...-3...-3...-3...-4...-3...-4...-4...-4...-2...-4...-1...-3...-2...-2
..1....0....1...-1....3....1....2....2....2....2....2....2....0...-2....3....0
..1....3...-2....4....0....3....2....2...-2...-2...-1....1...-1....2...-1...-2
..0...-1....0...-1...-2....2...-1....1....1....3....0...-2....0....0....2....1
.-1...-1....3...-1....2....0....2...-3....2...-1...-2....1...-1....4...-1....4
..2....1....1....2....0...-2...-2....2....1....2....3....2....3...-1...-1...-1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 01 2012
STATUS
approved