OFFSET
1,2
COMMENTS
Column 6 of A208825.
EXAMPLE
Some solutions for n=3:
.-4...-5...-4...-6...-5...-2...-1...-3...-6...-1...-3...-6...-4...-2...-6...-4
.-2....1....0....3...-1...-1....0...-1....1...-1....1....0...-1...-2....2....2
..6....4....4....3....6....3....1....4....5....2....2....6....5....4....4....2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 01 2012
STATUS
approved