n=4的一些解
..0..0..1. .0..1..2. .0..1..1. .0..1..1. .0..1..0. .0..1..0. .0..0..1
..2..1..1. .0..2..0. .2.1.2。1..2..1. .2..1..1. .0..1..1. .2..2..1
..2..2..2. .0..2..1. .0..2..0。2..0..2. .0..0..0. .1..1..0. .2..1..1
..0..2..0. .2..2..1. .1..0..2. .1..1..2. .0..2..0. .2..0..2. .0..2..0
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