A217624 - OEIS

%I #7 Sep 08 2022 08:46:04

%S 11,41,83,157,211,283,367,461,563,617,773,877,991,1087,1201,1409,1471,

%T 1597,1723,1823,2027,2099,2341,2417,2609,2719,2897,3019,3169,3299,

%U 3469,3593,3761,4027,4153,4339,4463,4567,4787,4933,5059,5281,5503,5651,5801

%N Prime(prime(3*n)).

%C Subsequence of A006450.

%H Vincenzo Librandi, <a href="/A217624/b217624.txt">Table of n, a(n) for n = 1..1000</a>

%t Table[Prime[Prime[3n]], {n, 100}]

%o (Magma) [NthPrime(NthPrime(3*n)): n in [1..50]];

%Y Cf. A000040, A006450.

%K nonn,easy

%O 1,1

%A _Vincenzo Librandi_, Oct 13 2012