OFFSET
1,1
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 1..3000
EXAMPLE
For p=31 (a prime), 8*p - 9 = 239 is also prime, so 31 is in the sequence.
MATHEMATICA
Select[Prime[Range[150]], PrimeQ[8 # - 9]&] (* Vincenzo Librandi, Apr 04 2013 *)
PROG
(Magma) [p: p in PrimesUpTo(1000) | IsPrime(8*p-9)]; // Vincenzo Librandi, Apr 04 2013
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Vincenzo Librandi, Jan 01 2009
EXTENSIONS
4 removed, extended by R. J. Mathar, Jan 07 2009
STATUS
approved