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A233604
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Number of (2+2)X(n+2) 0..2 arrays with no increasing sequence of length 3 horizontally, vertically or antidiagonally downwards
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1
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342185, 20463326, 1228836823, 73856970690, 4437742405449, 266642245870341, 16020595216911881, 962558718514483306, 57832813368256439630, 3474731841444380222451, 208770030278144266959124
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