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Search: id:A103807
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| A103807 |
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Primes p such that p, 2p+/-27 and 2p+/-33 are all primes. |
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+0
1
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| 2, 5, 7, 23, 37, 103, 313, 457, 733, 863, 2053, 2063, 2917, 4723, 7187, 7817, 8017, 9007, 9473, 9973, 10687, 11527, 11923, 13477, 13883, 15787, 26833, 31477, 34897, 36097, 36353, 36493, 39937, 44417, 46447, 47623, 52103, 53377, 55813, 60737
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OFFSET
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1,1
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COMMENT
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Intersection of A103805 and A103806. If, e.g. -29 is not prime (Mathematica admits negative primes as well), then first three terms should be omitted.
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MATHEMATICA
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Intersection[Select[Range[100000], PrimeQ[ # ]&&PrimeQ[2#+33]&&PrimeQ[2#-33]&&PrimeQ[ # ]&&PrimeQ[2#+27]&&PrimeQ[2#-27]&]]
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CROSSREFS
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Cf. A103805, A103806.
Sequence in context: A158357 A072953 A103060 this_sequence A099228 A106018 A056921
Adjacent sequences: A103804 A103805 A103806 this_sequence A103808 A103809 A103810
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KEYWORD
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nonn
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AUTHOR
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Zak Seidov (zakseidov(AT)yahoo.com), Feb 16 2005
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