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Search: id:A081296
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| A081296 |
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Primes of the form 2^k - k. |
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+0
2
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| 2, 5, 503, 8179, 524269, 2097131, 36028797018963913, 3705346855594118253554271520278013051304639509300498049262642688253220148477691
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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Primes in A000325.
Next term a(9) contains roughly 1000 digits and is too large to include. - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jul 15 2007
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PROGRAM
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(PARI) { for(k=1, 100000, if(isprime(2^k-k), print(2^k-k) ; ) ; ) ; } - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jul 15 2007
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CROSSREFS
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Sequence in context: A081462 A035128 A138696 this_sequence A133378 A068105 A065588
Adjacent sequences: A081293 A081294 A081295 this_sequence A081297 A081298 A081299
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KEYWORD
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nonn
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AUTHOR
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Reinhard Zumkeller (reinhard.zumkeller(AT)lhsystems.com), Apr 20 2003
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EXTENSIONS
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More terms from R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jul 15 2007
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