n=2的一些解
..0..0....0..1....0..3....0..3....0..0....0..2....0..3....0..1....0..4....0..1
..2..4....3..0....3..2....0..3....4..2....0..1....3..1....3..3....4..3....3..3
..1..3....2..4....1..0....2..1....1..4....3..4....0..4....2..2....1..3....2..1
..3..2....2..4....4..4....4..4....1..3....3..2....2..2....0..4....0..2....0..4
..1..4....1..3....2..1....1..2....3..2....1..4....1..4....4..1....2..1....2..4