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A124519
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Numbers n such that 12n-1 and 12n+1 are twin primes.
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7
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1, 5, 6, 9, 15, 16, 19, 20, 26, 29, 35, 36, 50, 55, 69, 85, 86, 91, 96, 110, 119, 121, 124, 134, 135, 139, 149, 156, 161, 169, 174, 176, 189, 195, 216, 224, 226, 250, 260, 264, 271, 275, 280, 281, 289, 294, 295, 306, 314, 321, 335, 341, 344, 355, 356, 379, 399
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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MATHEMATICA
| Select[Range[400], And @@ PrimeQ[{-1, 1} + 12# ] &] (*Chandler*)
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CROSSREFS
| Cf. A040040, A045753, A002822, A124065, A124518-A124522, A063983.
Sequence in context: A195928 A047438 A117951 * A154311 A014980 A066901
Adjacent sequences: A124516 A124517 A124518 * A124520 A124521 A124522
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KEYWORD
| nonn
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AUTHOR
| Artur Jasinski (grafix(AT)csl.pl), Nov 04 2006
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EXTENSIONS
| Extended by Ray Chandler (rayjchandler(AT)sbcglobal.net), Nov 16 2006
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