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A023319
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Numbers n such that n remains prime through 4 iterations of function f(x) = 8x + 1.
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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; refs; listen; history; internal format)
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OFFSET
| 1,1
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COMMENTS
| n, 8*n+1, 64*n+9, 512*n+73 and 4096*n+585 are primes. [From Vincenzo Librandi (vincenzo.librandi(AT)tin.it), Aug 04 2010]
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PROG
| (MAGMA) [n: n in [1..5000000] | IsPrime(n) and IsPrime(8*n+1) and IsPrime(64*n+9) and IsPrime(512*n+73) and IsPrime(4096*n+585)] [From Vincenzo Librandi (vincenzo.librandi(AT)tin.it), Aug 04 2010]
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CROSSREFS
| Sequence in context: A004971 A037210 A114360 * A043659 A178458 A031772
Adjacent sequences: A023316 A023317 A023318 * A023320 A023321 A023322
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KEYWORD
| nonn
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AUTHOR
| David W. Wilson (davidwwilson(AT)comcast.net)
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