n=5的一些解
.-4...-6...-3...-6...-7...-7...-4...-4...-6...-7...-5...-3...-7...-7...-7...-4
.-4...-5...-2...-3...-4...-2...-2...-2...-2...-1...-5...-3...-6...-3...-5...-3
.-1....0...-1....1....2...-1...-1...-1....0....0...-4...-1....3...-1....3...-1
..4....4...-1....1....4....5....0....2....4....2....7....1....5....5....3....3
..5....7....7....7....5....5....7....5....4....6....7....6....5....6....6....5