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 A118158 #4 May 26 2014 23:48:47 %S A118158 1,64,109,964,532,298,955,622,289,1045,5464,4708,8137,7381,1900,154, %T A118158 514,478,937,802,271,235,595,658,919,982,352,316,676,739,1000,64,109, %U A118158 964,532,298,955,622,289,1045,5464,4708,8137,7381,1900,154,514,478,937,802 %N A118158 Start with 1 and repeatedly reverse the digits and add 63 to get the next term. %C A118158 After 1 step enters a cycle of 30. %H A118158 N. J. A. Sloane and others, <a href="/wiki/Sequences_of_RADD_type">Sequences of RADD type</a>, OEIS wiki. %Y A118158 Cf. A117828, A117816, A117817. %K A118158 base,nonn,less %O A118158 1,2 %A A118158 Luc Stevens (lms022(AT)yahoo.com), May 14 2006