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 A104116 #8 Sep 08 2022 08:45:17
%S A104116 19,229,7789,279949,28430288029929701389,
%T A104116 174588755932389037098918153698611839369229,
%U A104116 24071951487285782880390320326214662876142414926450873355734389735932734339553143491252967333529911309
%N A104116 Primes of the form 6^n+13.
%H A104116 Vincenzo Librandi, <a href="/A104116/b104116.txt">Table of n, a(n) for n = 1..12</a>
%t A104116 Select[Table[6^n+13,{n,0,300}],PrimeQ] (* _Vincenzo Librandi_, Jul 19 2012 *)
%o A104116 (Magma) [ a: n in [0..250] | IsPrime(a) where a is 6^n+13]; // _Vincenzo Librandi_, Jul 19 2012
%Y A104116 Cf. A080174.
%K A104116 nonn
%O A104116 1,1
%A A104116 _Roger L. Bagula_, Mar 05 2005
%E A104116 Corrected a(7) by - _Vincenzo Librandi_, Jul 19 2012