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 A043035 #15 Aug 27 2021 07:06:20 %S A043035 8,80,656,665,674,683,692,701,710,719,728,5840,5930,6020,6110,6200, %T A043035 6290,6380,6470,6560,52496,52577,52658,52739,52820,52901,52982,53063, %U A043035 53144,53234,53315,53396,53477,53558,53639,53720 %N A043035 Base-9 palindromes that start with 8. %H A043035 Harvey P. Dale, <a href="/A043035/b043035.txt">Table of n, a(n) for n = 1..1000</a> %t A043035 b9dQ[n_]:=Module[{idn=IntegerDigits[n,9]},idn==Reverse[idn]&&idn[[1]] == 8]; Select[Range[60000],b9dQ] (* _Harvey P. Dale_, Sep 03 2016 *) %Y A043035 Cf. A007095, A043079. %Y A043035 Base-9 palindromes: A029955. %Y A043035 Base-9 palindromes that start with d, for d=1..8: A043028..A043035. %Y A043035 Base-b palindromes that start with 8, for b=9,10: this sequence, A043043. %K A043035 nonn,base %O A043035 1,1 %A A043035 _Clark Kimberling_