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A023315
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Primes that remain prime through 4 iterations of function f(x) = 5x + 6.
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2
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79, 401, 1259, 2477, 3019, 4409, 10303, 15679, 20509, 24499, 34127, 43987, 44389, 53101, 66359, 71287, 74857, 81097, 85903, 90803, 93053, 102811, 103231, 104999, 112601, 125453, 132533, 144731, 156347, 157793, 160817, 161839, 163981, 170641
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OFFSET
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1,1
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COMMENTS
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Primes p such that 5*p+6, 25*p+36, 125*p+186 and 625*p+936 are also primes. - Vincenzo Librandi, Aug 04 2010
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LINKS
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FORMULA
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PROG
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(Magma) [n: n in [1..1000000] | IsPrime(n) and IsPrime(5*n+6) and IsPrime(25*n+36) and IsPrime(125*n+186) and IsPrime(625*n+936)] // Vincenzo Librandi, Aug 04 2010
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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