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