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A139314 Primes of the form 2^(2p - 1) - 1, where p is prime. +0
1
7, 31, 8191, 2305843009213693951 (list; graph; listen)
OFFSET

1,1

COMMENT

Primes in A139287.

This sequence is a subsequence of A000668. From A000043, a(5) = 2^3217 - 1. The next term a(6) is an unknown Mersenne prime. [From W. Bomfim (webonfim(AT)bol.com.br), Nov 18 2009]

LINKS

Wikipedia, Mersenne prime [From W. Bomfim (webonfim(AT)bol.com.br), Nov 18 2009]

CROSSREFS

Cf. A139286, A139287.

Sequence in context: A139287 A139307 A134709 this_sequence A163083 A101329 A164819

Cf. A000668, A000043. [From W. Bomfim (webonfim(AT)bol.com.br), Nov 18 2009]

Adjacent sequences: A139311 A139312 A139313 this_sequence A139315 A139316 A139317

KEYWORD

more,nonn

AUTHOR

Omar E. Pol (info(AT)polprimos.com), Apr 13 2008

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Last modified December 18 21:37 EST 2009. Contains 171024 sequences.


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