OFFSET
1,1
EXAMPLE
(2,3,17) is a triple of 3 primes 2, 2^2-1, 2^4+1.
CROSSREFS
KEYWORD
nonn,less
AUTHOR
Juri-Stepan Gerasimov, Jun 14 2008
EXTENSIONS
Edited by R. J. Mathar, Jun 16 2008
STATUS
approved