n=3的一些解
..1..2..1....0..2..1....0..2..1....0..2..1....0..2..1....1..2..0....1..0..0
..0..2..0....0..3..1....0..1..1....0..2..1....0..3..0....0..3..0....1..4..1
..0..0..1....1..1..0....1..4..0....0..2..1....1..1..0....1..1..1....0..2..0
..1..4..0....0..2..1....0..1..1....1..2..0....2..2..0....0..2..1....1..2..0