OFFSET
1,1
LINKS
Michael De Vlieger, Table of n, a(n) for n = 1..10000
MATHEMATICA
Select[Prime[Range[220]], PrimeQ[6#+1]&&PrimeQ[1#+6]&]
PROG
(Magma) [p: p in PrimesUpTo(5000)|IsPrime(p+6) and IsPrime(6*p+1)]; // Vincenzo Librandi, Jan 30 2011
CROSSREFS
KEYWORD
nonn
AUTHOR
Zak Seidov, May 07 2005
STATUS
approved