n=4的一些解
..0..0..0..1....0..0..0..1....0..0..1..1....0..0..0..1....0..0..0..1
..0..1..1..0....0..0..0..1....0..1..0..1....0..0..1..1....0..0..1..1
..1.0...1...0...0...1...1...1...1...0...0...0...1...1...1...1...1...1...1...1...0
..1..1..1..1....1..1..1..0....1..1..0..0....1..1..1..0....1..1..0..1
|