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Search: id:A077375
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| A077375 |
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Numbers n such that 2^n + prime(n) is prime. |
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+0
4
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| 2, 3, 4, 5, 12, 13, 14, 23, 57, 106, 226, 227, 311, 373, 1046, 1298, 1787, 1952, 2130, 2285, 2670, 3254, 3642, 4369, 13559, 33418, 66830
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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All terms < 5000 correspond to certified primes (Primo 2.2.0 beta). - Ryan Propper (rpropper(AT)stanford.edu), Aug 08 2005
66830 was found by Henri Lifchitz.
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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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Sequence in context: A066574 A039007 A050745 this_sequence A132027 A103651 A093713
Adjacent sequences: A077372 A077373 A077374 this_sequence A077376 A077377 A077378
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KEYWORD
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nonn
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AUTHOR
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Jason Earls (zevi_35711(AT)yahoo.com), Nov 30 2002
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EXTENSIONS
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2 more terms from Ryan Propper (rpropper(AT)stanford.edu), Aug 08 2005
66830 sent by Jason Earls (zevi_35711(AT)yahoo.com), Jan 12 2008
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