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 A118160 #10 Jul 17 2020 16:47:11 %S A118160 1,49,142,289,1030,349,991,247,790,145,589,1033,3349,9481,1897,8029, %T A118160 9256,6577,7804,4135,5362,2683,3910,241,190,139,979,1027,7249,9475, %U A118160 5797,8023,3256,6571,1804,4129,9262,2677,7810,235,580,133,379,1021,1249,9469 %N A118160 Start with 1 and repeatedly reverse the digits and add 48 to get the next term. %C A118160 After 308 steps enters a cycle of 30. %H A118160 N. J. A. Sloane and others, <a href="/wiki/Sequences_of_RADD_type">Sequences of RADD type</a>, OEIS wiki. %Y A118160 Cf. A117828, A117816, A117817. %K A118160 base,nonn,less,easy %O A118160 1,2 %A A118160 Luc Stevens (lms022(AT)yahoo.com), May 14 2006 %E A118160 a(34) corrected by _Georg Fischer_, Jul 17 2020