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 A173640 #10 Aug 04 2019 19:12:47
%S A173640 2,101,60083,
%T A173640 11610630703530923996233764322611619865107483053157900065365853867349888133476404509
%N A173640 Primes of form n+2^n+3^n.
%C A173640 For a(5), n > 10000. - _Daniel Starodubtsev_, Aug 04 2019
%t A173640 Select[Table[n+2^n+3^n,{n,0,6!}],PrimeQ[#]&]
%Y A173640 Cf. A082101, A082182, A128447, A128448, A128449, A128450, A128451, A100840, A100841
%K A173640 nonn
%O A173640 1,1
%A A173640 _Vladimir Joseph Stephan Orlovsky_, Nov 23 2010