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A023302 Numbers n such that n remains prime through 4 iterations of function f(x) = 2x + 1. +0
32
2, 89, 179, 53639, 53849, 61409, 63419, 66749, 126839, 127139, 143609, 167729, 186149, 206369, 254279, 268049, 296099, 340919, 405269, 422069, 446609, 539009, 594449, 607319, 658349, 671249, 725009, 775949, 810539, 810809, 812849, 819509 (list; graph; listen)
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Last modified December 5 23:38 EST 2009. Contains 170428 sequences.


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