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Search: id:A006035
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| A006035 |
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Numbers n such that (19^n-1)/18 is prime.
(Formerly M5072)
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+0
14
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OFFSET
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1,1
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COMMENT
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No others less than 8011. - Julien Peter Benney (jpbenney(AT)ftml.net), Aug 15 2004
a(9) = 9511 was found by Richard Fischer Dec 15 2004. - Alexander Adamchuk (alex(AT)kolmogorov.com), Feb 11 2007
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REFERENCES
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H. Dubner, Generalized repunit primes, Math. Comp., 61 (1993), 927-930.
Ribenboim, Paulo; "The Book Of Prime Number Records"; published 1989 by Springer-Verlag; pages 350-354.
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LINKS
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H. Lifchitz, Mersenne and Fermat primes field
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CROSSREFS
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Cf. A028491, A004061, A004062, A004063, A004023, A005808, A004064, A016054, A006032, A006033, A006034. Cf. A127995, A127996, A127997, A127998, A127999, A128000, A098438, A128002, A128003, A128004, A128005.
Sequence in context: A096787 A104006 A117065 this_sequence A104485 A141184 A033212
Adjacent sequences: A006032 A006033 A006034 this_sequence A006036 A006037 A006038
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KEYWORD
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nonn
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AUTHOR
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njas
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EXTENSIONS
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One more term from Herman Jamke (hermanjamke(AT)fastmail.fm), Jan 05 2008
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