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