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 A247110 #29 Jul 23 2025 11:33:16
%S A247110 11,33,44,55,66,77,88,99,110,22,33,55,66,77,88,99,110,121,33,44,55,77,
%T A247110 88,99,110,121,132,44,55,66,77,99,110,121,132,143,55,66,77,88,99,121,
%U A247110 132,143,154,66,77,88,99,110,121,143,154,165,77,88,99,110,121,132,143,165,176,88,99,110,121,132,143,154,165,187,99,110,121
%N A247110 n + reversal of digits of n, when n is not palindromic.
%t A247110 With[{n=50}, (FromDigits[#] + FromDigits[Reverse[#]]) & /@ Select[IntegerDigits[Range[n]], # != Reverse[#] &]]
%t A247110 Table[If[n==IntegerReverse[n],Nothing,n+IntegerReverse[n]],{n,100}] (* Requires Mathematica version 10 or later *) (* _Harvey P. Dale_, Sep 29 2016 *)
%Y A247110 Cf. A056964 (n + reversal of digits of n)
%K A247110 nonn,base
%O A247110 10,1
%A A247110 _Morgan L. Owens_, Nov 21 2014