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Search: id:A059455
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| A059455 |
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Safe primes which are also Sophie Germain primes. |
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+0
32
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| 5, 11, 23, 83, 179, 359, 719, 1019, 1439, 2039, 2063, 2459, 2819, 2903, 2963, 3023, 3623, 3779, 3803, 3863, 4919, 5399, 5639, 6899, 6983, 7079, 7643, 7823, 10163, 10799, 10883, 11699, 12203, 12263, 12899, 14159, 14303, 14699, 15803, 17939
(list; graph; listen)
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OFFSET
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1,1
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LINKS
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T. D. Noe, Table of n, a(n) for n=1..1000
C. K. Caldwell, Cunningham Chains
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FORMULA
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Intersection[A005384, A005385]
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EXAMPLE
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83 is here because 2.83+1=167 and (83-1)/2=41 are both primes. Except for 5, all are congruent to 11 modulo 12. Primes "inside" Cunningham chains of first kind.
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CROSSREFS
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A005384, A005385, A053176, A059452-A059456, A007700, A005602, A023272, A023302, A023330.
Sequence in context: A024829 A097279 A106171 this_sequence A095030 A065114 A102171
Adjacent sequences: A059452 A059453 A059454 this_sequence A059456 A059457 A059458
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KEYWORD
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nonn
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AUTHOR
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Labos E. (labos(AT)ana.sote.hu), Feb 02 2001
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