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 A063063 #22 Apr 16 2025 21:12:50 %S A063063 10563,47064,93138,176277,948948,1798797,9777768,18455547,93011028, %T A063063 175022067,935242638,1771485177,9487326948,17983564797,97730103768, %U A063063 184460207547,930162272028,1750434533067,9353788873638,17717577747177 %N A063063 'Reverse and Add!' trajectory of 10563. %H A063063 Reinhard Zumkeller and Michael Lee, <a href="/A063063/b063063.txt">Table of n, a(n) for n = 0..2383</a> (terms 0 through 250 provided by Reinhard Zumkeller) %H A063063 <a href="/index/Res#RAA">Index entries for sequences related to Reverse and Add!</a> %e A063063 a(1) = 10563 + 36501 = 47064. %t A063063 NestList[# + FromDigits[Reverse[IntegerDigits[#]]]&, 10563, 30] (* _Vincenzo Librandi_, May 03 2014 *) %o A063063 (ARIBAS) m := 10563; stop := 25; c := 0; rev := int_reverse(m); while m <> rev and c < stop do inc(c); write(m," "); m := m + rev; rev := int_reverse(m); end; %o A063063 (Haskell) %o A063063 a063063 n = a063063_list !! n %o A063063 a063063_list = iterate a056964 10563 -- _Reinhard Zumkeller_, Sep 22 2011 %Y A063063 A033865, A023108, A006960, A063064. %Y A063063 Cf. A056964, A004086. %K A063063 base,nonn %O A063063 0,1 %A A063063 _Klaus Brockhaus_, Jul 07 2001