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A231942
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Number of 3Xn 0..3 arrays with no element less than a strict majority of its horizontal, diagonal and antidiagonal neighbors
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1
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64, 318, 8426, 206808, 4736026, 94464137, 1919281092, 41278336185, 897740885078, 19169895279256, 405027273733561, 8590742778707213, 183219148883189294, 3908854794384722672, 83220827197605442257, 1770396034339882044148
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