OFFSET
1,2
COMMENTS
Column 7 of A208993.
EXAMPLE
Some solutions for n=6:
.-4...-6...-3...-7...-6...-3...-3...-5...-7...-4...-5...-2...-6...-4...-5...-7
.-1...-2....0....0....1....0....4....1...-2....3....0....3....1....2...-2...-2
..0....3....0....4....6...-2...-2....1....0....2....4...-1....5...-1...-2....5
..3....1...-2....4....3....4...-2...-1....6....3...-1....0...-2....2....4...-1
.-1....5....5...-1...-1....2....3....2....5...-3....2....1....3....3....5....5
..3...-1....0....0...-3...-1....0....2...-2...-1....0...-1...-1...-2....0....0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 04 2012
STATUS
approved