OFFSET
1,1
COMMENTS
Subsequence of A006450.
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 1..1000
MATHEMATICA
Table[Prime[Prime[3n]], {n, 100}]
PROG
(Magma) [NthPrime(NthPrime(3*n)): n in [1..50]];
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Vincenzo Librandi, Oct 13 2012
STATUS
approved