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A127453 Primes p such that 6p-13 and 6p+13 all also primes. +0
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3, 5, 11, 19, 31, 61, 79, 89, 101, 149, 179, 241, 269, 331, 409, 439, 479, 509, 599, 619, 691, 739, 751, 919, 971, 1031, 1039, 1061, 1171, 1201, 1249, 1319, 1451, 1531, 1571, 1741, 1871, 1879, 1999, 2161, 2221, 2389, 2459, 2531, 2609, 2819, 3061, 3301, 3391 (list; graph; listen)
OFFSET

1,1

EXAMPLE

11, 6*11-13=53, 6*11+13=79 are all primes.

MATHEMATICA

Select[Range[5000], PrimeQ[ # ] && PrimeQ[6# + 13] && PrimeQ[6# - 13] &]

CROSSREFS

Adjacent sequences: A127450 A127451 A127452 this_sequence A127454 A127455 A127456

Sequence in context: A007671 A090471 A124098 this_sequence A092602 A134127 A078722

KEYWORD

nonn

AUTHOR

Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), Mar 31 2007

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Last modified October 7 08:31 EDT 2008. Contains 144667 sequences.


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