n=3的一些解
..0..1..1..1..2...2...0..2..2...1..1..2...1...0...2...0...1...0...0...1...0...1...0...2...2...0
..2...0...0...2...0...1...0...2...0...1...0...2...0...1...2...0...1...2...1...0...0...0...1...0
..2..1..2..1..1..2....2..0..1..1..1..0....1..0..2..0..1..0....0..1..0..2..2..0
..1..0..2..2..0..0....0..1..0..0..1..1....0..2..2..0..1..1....2..1..0..0..1..0
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