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 A164999 #6 Jun 02 2025 01:54:47 %S A164999 1,2,2,1,3,3,3,2,2,1,1,3,3,3,2,2,1,4,4,4,4,1,3,3,1,3,3,3,3,2,2,1,2,2, %T A164999 1,5,5,5,5,5,3,3,1,3,3,3,3,2,2,1,1,2,2,1,6,6,6,6,6,6,5,5,5,5,5,3,3,1, %U A164999 3,3,3,3,2,2,1,3,3,3,1,2,2,1,4,4,2,4,1,2,4,6,6,6,6,6,6,5,5,5,5,5,3,3,1,3,3 %N A164999 Length of cycle mentioned in A164998. %H A164999 Joseph Myers, <a href="/A164999/b164999.txt">Table of n, a(n) for n=1..8662</a> %H A164999 <a href="/index/K#Kaprekar_map">Index entries for the Kaprekar map</a> %Y A164999 Cf. A164993, A164998, A165001, A165003, A165005, A165011. %Y A164999 In other bases: A000012 (base 2), A165018 (base 4), A165038 (base 5), A165057 (base 6), A165077 (base 7), A165096 (base 8), A165116 (base 9), A164717 (base 10). %K A164999 base,nonn %O A164999 1,2 %A A164999 _Joseph Myers_, Sep 04 2009