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A057999
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a(n) is smallest prime such that a(n)-1 is a proper multiple of a(n-1)-1 [with a(0)=2].
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1
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2, 3, 5, 13, 37, 73, 433, 1297, 2593, 10369, 72577, 508033, 1524097, 12192769, 73156609, 146313217, 438939649, 2633637889, 23702740993, 142216445953, 1991030243329, 37829574623233, 416125320855553
(list; graph; refs; listen; history; internal format)
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