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