OFFSET
1,1
LINKS
Michael De Vlieger, Table of n, a(n) for n = 1..10000
FORMULA
MATHEMATICA
Select[Prime[Range[120]], PrimeQ[10#+3]&&PrimeQ[10#-3]&]
PROG
(Magma) [p: p in PrimesUpTo(2100) | IsPrime(10*p-3) and IsPrime(10*p+3)]; // Vincenzo Librandi, Nov 13 2010
CROSSREFS
KEYWORD
nonn
AUTHOR
Zak Seidov, May 05 2005
STATUS
approved