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 A105462 #6 Mar 05 2019 08:49:27
%S A105462 37,67,233,467,1307,4637,15601,54437,184279,616391,2009011,6568151,
%T A105462 21341821,68826689,220682383,704456869
%N A105462 The 3^n-th irregular prime.
%t A105462 ip={ the list of irregular primes to 12 million }; Table[ ip[[3^n]], {n, 0, 11}]
%Y A105462 Cf. A038833, A105458, A105467.
%K A105462 hard,nonn
%O A105462 1,1
%A A105462 _Robert G. Wilson v_, Apr 07 2005
%E A105462 a(12) corrected and a(13)-a(17) added by _Amiram Eldar_, Mar 05 2019