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A023319 Numbers n such that n remains prime through 4 iterations of function f(x) = 8x + 1. +0
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2207, 126107, 230567, 366347, 590207, 788027, 831167, 919067, 985937, 1111427, 1154567, 1170857, 1367507, 1463597, 1624757, 1934417, 2034797, 2468027, 2502767, 2545307, 3019787, 3287027, 3385817, 3675197, 3692207, 4087757, 4565927, 4600577 (list; graph; listen)
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Last modified December 20 16:54 EST 2009. Contains 171081 sequences.

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