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 A118159 #12 Mar 31 2023 13:57:00 %S A118159 1,65,120,85,122,285,646,710,81,82,92,93,103,365,627,790,161,225,586, %T A118159 749,1011,1165,5675,5829,9349,9503,3123,3277,7787,7941,1561,1715,5235, %U A118159 5389,9899,10053,35065,56117,71229,92281,18293,39345,54457,75509,90621 %N A118159 Start with 1 and repeatedly reverse the digits and add 64 to get the next term. %C A118159 After 809 steps enters a cycle of 108. %H A118159 N. J. A. Sloane and others, <a href="/wiki/Sequences_of_RADD_type">Sequences of RADD type</a>, OEIS wiki. %t A118159 NestList[IntegerReverse[#]+64&,1,50] (* _Harvey P. Dale_, Mar 31 2023 *) %Y A118159 Cf. A117828, A117816, A117817. %K A118159 base,nonn,less,easy %O A118159 1,2 %A A118159 Luc Stevens (lms022(AT)yahoo.com), May 14 2006 %E A118159 a(31) corrected by _Georg Fischer_, Jul 17 2020