n=5的一些解
..1..4....1..0....0..1....1..0....0..2....4..0....1..2....1..2....0..1....2..1
..3..2....0..2....1..0....2..1....3..0....1..3....2..1....0..3....3..2....0..4
..1..4....2..1....0..3....0..3....0..4....0..4....1..4....4..0....2..3....1..3
..4..1....0..3....2..1....3..1....3..1....4..1....4..1....1..3....3..2....0..4
..1..4....1..2....1..3....0..4....4..3....3..2....1..4....2..4....1..4....1..3
..4..2....2..1....0..4....1..3....3..4....2..4....4..1....4..2....2..3....3..2