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A140383 Prime triples of the form p, 2^p -1, 2^(2^p)+1 derived from a single prime p. 0
2, 3, 17, 3, 7, 257 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

List is probably complete (see comments in A000215, A019434).

LINKS

Table of n, a(n) for n=1..6.

EXAMPLE

(2,3,17) is a triple of 3 primes 2, 2^2-1, 2^4+1.

CROSSREFS

Cf. A000040, A000043, A000668, A000215.

Sequence in context: A005273 A171990 A103898 * A029913 A029914 A073125

Adjacent sequences:  A140380 A140381 A140382 * A140384 A140385 A140386

KEYWORD

nonn,less

AUTHOR

Juri-Stepan Gerasimov, Jun 14 2008

EXTENSIONS

Edited by R. J. Mathar, Jun 16 2008

STATUS

approved

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Last modified October 23 17:32 EDT 2019. Contains 328373 sequences. (Running on oeis4.)