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 A065216 #16 Dec 08 2024 14:15:31 %S A065216 167,266,365,563,662,761,860,7069,7159,7249,7339,7429,7519,7609,7699, %T A065216 7789,7879,7969,8068,8158,8248,8428,8518,8608,8698,8788,8878,8968, %U A065216 9039,9067,9129,9157,9219,9247,9309,9337,9399,9427,9489,9517,9579,9607,9697 %N A065216 Numbers which need eleven 'Reverse and Add' steps to reach a palindrome. %C A065216 The number of steps starts at 0, so palindromes (cf. A002113) are excluded. %C A065216 Numbers k such that A033665(k) = 11. - _Andrew Howroyd_, Dec 08 2024 %H A065216 Vincenzo Librandi, <a href="/A065216/b065216.txt">Table of n, a(n) for n = 1..1000</a> %H A065216 <a href="/index/Res#RAA">Index entries for sequences related to Reverse and Add!</a> %t A065216 lenQ[n_]:= Length[NestWhileList[# + FromDigits[Reverse[IntegerDigits[#]]]&, n, #!= FromDigits[Reverse[IntegerDigits[#]]]&, 1, 12]] == 12; Select[Range[1000], lenQ] (* _Vincenzo Librandi_, Sep 24 2013 *) %Y A065216 A002113, A015992, A033665, A065206. %K A065216 nonn,base %O A065216 1,1 %A A065216 _Klaus Brockhaus_, Oct 21 2001 %E A065216 Offset changed from 0 to 1 by _Harry J. Smith_, Oct 14 2009