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A162714 Primes p such that 3^p-2^(p+1) is also prime. +0
2
3, 5, 7, 31, 59, 97, 2341 (list; graph; listen)
OFFSET

1,1

COMMENT

The associated 3^p-2^(p+1) are in A162715.

EXAMPLE

The prime p=3 is in the sequence because 3^3-2^4=11 is prime.

The prime p=5 is in the sequence because 3^5-2^6=179 is prime.

CROSSREFS

Cf. A162715

Sequence in context: A060273 A124077 A006378 this_sequence A002396 A029508 A095714

Adjacent sequences: A162711 A162712 A162713 this_sequence A162715 A162716 A162717

KEYWORD

nonn

AUTHOR

Vincenzo Librandi (vincenzo.librandi(AT)tin.it), Jul 11 2009

EXTENSIONS

Definition simplified, one term added by R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Aug 02 2009

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Last modified November 23 17:09 EST 2009. Contains 167438 sequences.


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