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 A164725 #6 Jun 02 2025 01:51:53 %S A164725 64308654,83208762,86526432,6431088654,6433086654,6543086544, %T A164725 8321088762,8332087662,8653266432,8655264432,8732087622,8765264322, %U A164725 9751088421,9755084421,9775084221,643110888654,643310886654,643330866654 %N A164725 Numbers belonging to cycles of length 3 under the Kaprekar map A151949. %H A164725 Joseph Myers, <a href="/A164725/b164725.txt">Table of n, a(n) for n=1..27849</a> %H A164725 <a href="/index/K#Kaprekar_map">Index entries for the Kaprekar map</a> %Y A164725 Cf. A151949, A151959, A099009, A099010, A164716, A164723, A164727, A164729, A164726. %K A164725 base,nonn %O A164725 1,1 %A A164725 _Joseph Myers_, Aug 23 2009