Some solutions for n=3:
0 0 1 1 0 0 1 1 0 1 1 1 0 0 1 1 0 0 1 0
0 0 0 1 1 0 1 1 0 0 1 0 0 0 0 1 0 0 0 1
0 1 1 1 1 0 1 1 1 0 1 1 0 1 0 1 0 0 1 0
0 0 1 1 0 0 1 1 1 0 1 1 0 0 1 1 0 1 1 1
0 1 0 1 0 1 1 1 0 1 1 1 0 1 1 1 0 0 1 0
0 1 1 1 1 0 1 1 0 1 1 1 0 0 1 1 1 0 1 1
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