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A233492
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Number of (n+2) X (3+2) 0..2 arrays with no increasing sequence of length 3 horizontally or antidiagonally downwards.
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1
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8946936, 1709348346, 325881917874, 62127117326151, 11844001767009636, 2257956973020836034, 430460043429459971151, 82063498573383090200622, 15644698967819692026084375, 2982527068033093478348100960
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