

A140383


Prime triples of the form p, 2^p 1, 2^(2^p)+1 derived from a single prime p.


0




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, 2^21, 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

JuriStepan Gerasimov, Jun 14 2008


EXTENSIONS

Edited by R. J. Mathar, Jun 16 2008


STATUS

approved



