Some solutions for n=4
..0..0..1..2..3....0..1..2..2..0....0..1..0..2..2....0..1..1..2..3
..1..1..0..1..4....1..1..0..3..1....1..1..0..3..0....1..1..0..1..2
..0..0..1..2..2....0..0..1..0..3....0..0..1..0..2....0..0..1..0..4
..0..0..1..0..3....0..0..1..2..1....0..0..1..3..1....0..0..1..3..3
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