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