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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
OFFSET
1,1
COMMENTS
List is probably complete (see comments in A000215, A019434).
EXAMPLE
(2,3,17) is a triple of 3 primes 2, 2^2-1, 2^4+1.
CROSSREFS
KEYWORD
nonn,less
AUTHOR
EXTENSIONS
Edited by R. J. Mathar, Jun 16 2008
STATUS
approved