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 A155841 #2 Mar 31 2012 12:38:20
%S A155841 17,47,149,2081,8231,140737488355469,
%T A155841 300613450595050653169853516389035139504087366260264943450533244356122755214669880763353471793250393988087678029
%N A155841 Primes of the form q*p+2^p where p is prime, q=3.
%t A155841 lst={};Do[p=Prime[n];If[PrimeQ[p=3*p+2^p],AppendTo[lst,p]],{n,5!}];lst
%Y A155841 Cf. A057664
%K A155841 nonn
%O A155841 1,1
%A A155841 _Vladimir Joseph Stephan Orlovsky_, Jan 28 2009