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A234391
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Number of (n+2)X(3+2) 0..3 arrays with no increasing sequence of length 3 horizontally or diagonally downwards
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1
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585790562, 312048302829, 153633836957604, 74663552616253924, 35875918677964045614, 17195334462942102194231, 8228051529829721729550790, 3935465499122487418083720931, 1881860502330838651974878479518
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