OFFSET
1,2
COMMENTS
Column 3 of A193710
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..200
EXAMPLE
Some solutions for n=6
..3...-3...-3...-3....0....3...-2....0....3....0....3....3...-2....1....0....0
.-1...-2....2....1...-2...-1...-1....0...-3....0...-3....0...-1...-2...-3....3
..0....3....1....2....0...-2....0....3....1...-3....1....0....3....0....3...-2
.-2....2....2...-2....2...-1....3....0...-2....2....2...-3....1....1....1....1
.-1...-3...-2....1...-2....3...-1...-3....2....3....0...-1....2....1...-3...-2
..1....3...-1...-1....0...-3....1....0...-1...-2....0....1...-3...-2...-1....1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Aug 02 2011
STATUS
approved