Some solutions for 3X6 with a(1,1)=0
..0..0..0..2..1..0....0..0..0..0..2..3....0..0..0..0..3..1....0..0..0..2..2..2
..0..0..0..2..1..1....0..0..0..1..1..1....0..0..0..0..2..2....0..0..0..0..2..3
..0..0..3..2..2..1....0..0..0..3..0..2....0..0..3..0..3..3....0..0..0..0..2..3
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