This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A031336 #32 Jul 25 2024 10:44:09
%S A031336 5,13,23,37,47,61,73,89,103,113,137,151,167,181,197,223,233,251,269,
%T A031336 281,307,317,347,359,379,397,419,433,449,463,487,503,523,557,571,593,
%U A031336 607,619,643,659,677,701,727,743,761,787,811,827,853,863,883,911
%N A031336 a(n) = prime(3*n).
%H A031336 Vincenzo Librandi, <a href="/A031336/b031336.txt">Table of n, a(n) for n = 1..1000</a>
%F A031336 a(n) ~ 3n log n. - _Charles R Greathouse IV_, Jul 25 2024
%p A031336 ithprime(3*n)
%t A031336 Table[Prime[3 n], {n, 100}] (* _Vincenzo Librandi_, May 07 2014 *)
%o A031336 (Magma) [NthPrime(3*n): n in [1..60] ]; // _Vincenzo Librandi_, Apr 11 2011
%o A031336 (Sage) [nth_prime(3*n) for n in (1..60)] # _Bruno Berselli_, May 07 2014
%o A031336 (PARI) a(n)=prime(3*n) \\ _Charles R Greathouse IV_, Jul 25 2024
%Y A031336 Cf. similar sequences listed in A246929.
%K A031336 nonn,easy
%O A031336 1,1
%A A031336 _Jeff Burch_
%E A031336 Corrected by _Zak Seidov_, Feb 01 2006