n=4的一些解
..2..0..1..2..0..2..1..0....2..2..1..2..2..2..1..0....2..2..2..2..1..0..2..0
..2.1.1.1.1.2.2.1.2.2.2.2.2...0.1.1.1...0.1.1.1...0..1.2...0.1.1.1.2.2.2.2.2.1.1.2.2.2.1.2.2.2.1
..0..2..2..2..0..0..2..2....2..2..0..0..0..1..0..2....0..2..1..1..2..0..2..2
..2..1..1..2..0..2..2..0....1..1..1..2..0..2..2..1....1..0..2..1..1..0..2..1
..2..2..0..2..2..1..2..1....1..2..0..2..1..1..1..1....0..2..1..1..0..0..2..1
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