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 A118157 #6 Sep 30 2018 12:52:21 %S A118157 1,63,98,151,213,374,535,597,857,820,90,71,79,159,1013,3163,3675,5825, %T A118157 5347,7497,8009,9070,771,239,994,561,227,784,549,1007,7063,3669,9725, %U A118157 5341,1497,8003,3070,765,629,988,951,221,184,543,407,766,729,989,1051 %N A118157 Start with 1 and repeatedly reverse the digits and add 62 to get the next term. %C A118157 After 65 steps enters a cycle of 27. Cycle : 80, 70, 69, 158, 913, 381, 245, 604, 468, 926, 691, 258, 914, 481, 246, 704, 469, 1026, 6263, 3688, 8925, 5360, 697, 858, 920, 91, 81,... %H A118157 N. J. A. Sloane and others, <a href="/wiki/Sequences_of_RADD_type">Sequences of RADD type</a>, OEIS wiki. %t A118157 NestList[IntegerReverse[#]+62&,1,50] (* Requires Mathematica version 10 or later *) (* _Harvey P. Dale_, Sep 30 2018 *) %Y A118157 Cf. A117828, A117816, A117817. %K A118157 base,nonn,less %O A118157 1,2 %A A118157 Luc Stevens (lms022(AT)yahoo.com), May 14 2006 %E A118157 Corrected by _Harvey P. Dale_, Sep 30 2018