OFFSET
1,1
COMMENTS
Column 3 of A226410
EXAMPLE
Some solutions for n=3
.-3...-1...-2....0....0...-2...-3...-3...-3...-3...-3...-2....1...-3...-3...-3
.-2...-1....0....0....1...-2...-2...-2....3...-1...-1...-1....1....0...-3...-1
..0...-1....3....1....2....3....3....1....3...-1....1...-1....3....1...-3....2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Jun 06 2013
STATUS
approved