OFFSET
1,1
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 1..1000
MATHEMATICA
Select[Prime[Range[4000]], And @@ PrimeQ[{4# + 9, 8# + 21}]&] (* Vincenzo Librandi, Oct 31 2012 *)
PROG
(Magma) [p: p in PrimesUpTo(4000)|IsPrime(4*p + 9) and IsPrime (8*p + 21)]; // Vincenzo Librandi, Oct 31 2012
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Vincenzo Librandi, Feb 01 2009
STATUS
approved