OFFSET
1,1
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 1..1000
MATHEMATICA
Select[Prime[Range[5000]], PrimeQ[3 # + 4] && PrimeQ[5 # + 6] && PrimeQ[7 # + 8]&] (* Vincenzo Librandi, Apr 10 2013 *)
PROG
(Magma) [p: p in PrimesUpTo(100000) | IsPrime(p) and IsPrime(3*p+4) and IsPrime(5*p+6) and IsPrime(7*p+8)];
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Vincenzo Librandi, Mar 07 2010
STATUS
approved