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 A214895 #11 Jul 17 2015 00:24:40 %S A214895 23,162,37,199,118,317,145,231,188,419,607,513,560,37,199 %N A214895 Conway's subprime Fibonacci sequence starting with (23, 162). %C A214895 Similar to the Fibonacci recursion starting with (23, 162), but each new nonprime term is divided by its least prime factor. Sequence enters a loop of length 11 after 4 terms on reaching (37, 199). %H A214895 Richard K. Guy, Tanya Khovanova, and Julian Salazar, <a href="http://arxiv.org/abs/1207.5099">Conway's subprime Fibonacci sequences</a>, arXiv:1207.5099 [math.NT] %t A214895 see A214674 %Y A214895 Cf. A000045, A020639, A175723, A214551, A014682, A214674, A214892-A214898. %K A214895 nonn %O A214895 1,1 %A A214895 _Wouter Meeussen_, Jul 29 2012