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