OFFSET
1,2
COMMENTS
Column 6 of A199704
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..200
EXAMPLE
Some solutions for n=5
.-3....0...-4...-3....0....1...-3....3....4....1....6...-1....6...-4....4...-3
..0...-1....4....6...-2...-2....3....0....2...-1...-1...-5...-2....2...-6....6
..2....5....0...-6....2....0....5...-4....3....0....1...-2...-3....0...-1...-3
..3...-1...-4....3....5....6...-4....4...-6...-3...-2....3....4....3....1....5
.-2...-3....4....0...-5...-5...-1...-3...-3....3...-4....5...-5...-1....2...-5
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Nov 09 2011
STATUS
approved