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 A164997 #6 Jun 02 2025 01:54:38 %S A164997 0,184,2008,5332,19144,55360,146488,175528,520372,1502344,1589464, %T A164997 3975844,4749760,14072968,14334328,40625344,42947092,107527864, %U A164997 128312344,129096424,380156356,387121600,1097424568,1159778008 %N A164997 List of fixed points of the base-3 Kaprekar map A164993. %C A164997 Initial terms in base 3: 0, 20211, 2202101, 21022111, 222021001, 2210221101, 21102221111, 22220210001, 222102211001, 2211022211101. %H A164997 Joseph Myers, <a href="/A164997/b164997.txt">Table of n, a(n) for n=1..3268</a> %H A164997 <a href="/index/K#Kaprekar_map">Index entries for the Kaprekar map</a> %Y A164997 Cf. A164993, A164998, A165000, A008615. %Y A164997 In other bases: A163205 (base 2), A165016 (base 4), A165036 (base 5), A165055 (base 6), A165075 (base 7), A165094 (base 8), A165114 (base 9), A099009 (base 10). %K A164997 base,nonn %O A164997 1,2 %A A164997 _Joseph Myers_, Sep 04 2009