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A084039
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a(1) = 1 and then distinct numbers such that the product of two successive terms + 1 as well as the ratio of the larger to the smaller of two successive terms + 1 is a prime.
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2
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1, 2, 8, 32, 384, 4608, 4, 24, 48, 12, 3, 6, 72, 18, 9, 54, 27, 108, 1296, 648, 324, 162, 2916, 34992, 979776, 7, 28, 112, 448, 8064, 1344, 224, 14, 252, 63, 756, 21, 42, 84, 504, 1008, 12096, 96, 192, 768, 1536, 9216, 16, 480, 30, 5, 20, 80, 320, 5760, 10, 40
(list; graph; refs; listen; history; internal format)
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