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 A118237 #6 May 26 2014 23:48:47 %S A118237 14,42,25,53,36,64,47,75,58,86,69,97,80,9,10,2,3,4,5,6,7,8,9,10,2,3,4, %T A118237 5,6,7,8,9,10,2,3,4,5,6,7,8,9,10,2,3,4,5,6,7,8,9,10,2,3,4,5,6,7,8,9, %U A118237 10,2,3,4,5,6,7,8,9,10,2,3,4,5,6,7,8,9,10,2,3,4,5,6,7,8,9,10,2,3,4,5,6,7,8,9 %N A118237 Start with 14 and repeatedly reverse the digits and add 1 to get the next term. %C A118237 After 13 steps enters a cycle of length 9. %H A118237 N. J. A. Sloane and others, <a href="/wiki/Sequences_of_RADD_type">Sequences of RADD type</a>, OEIS wiki. %t A118237 NestList[FromDigits[Reverse[IntegerDigits[#]]]+1&,14,100] (* _Harvey P. Dale_, Oct 02 2013 *) %Y A118237 Cf. A118551. %K A118237 base,nonn %O A118237 1,1 %A A118237 Luc Stevens (lms022(AT)yahoo.com), May 14 2006