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 A132155 #19 Sep 08 2022 08:45:31 %S A132155 0,55,686,61105,70196,7035296,10834269,61666605,96021948,703686296, %T A132155 1083676269,1108342689,9603552948,61722221605,70370196296, %U A132155 108370096269,110836762689,111083426889,960368862948,7037035296296,10837034296269 %N A132155 a(n) = A099009(n)/9. %H A132155 Joseph Myers, <a href="/A132155/b132155.txt">Table of n, a(n) for n = 1..5344</a> %H A132155 <a href="/index/K#Kaprekar_map">Index entries for the Kaprekar map</a> %o A132155 (Magma) a:=func<n|Seqint(Sort(Intseq(n)))-Seqint(Reverse(Sort(Intseq(n)))) eq n>; [k/9:k in [0..1000000]|a(k)]; // _Marius A. Burtea_, Sep 12 2019 %Y A132155 Cf. A099009. %K A132155 nonn,base %O A132155 1,2 %A A132155 _Alexander R. Povolotsky_, Nov 01 2007 %E A132155 Extended by _Joseph Myers_, Aug 26 2009