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 A122524 #2 Mar 30 2012 17:26:22 %S A122524 2,7,103,274309092506641744944619304235289, %T A122524 71913864933263337464162651213311153, %U A122524 23583673968885646741228783732071635618505511 %N A122524 Prime numbers in Fibonacci-Collatz sequence A105801. %Y A122524 Cf. A105801. %K A122524 nonn %O A122524 1,1 %A A122524 _Zak Seidov_, Sep 17 2006