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 A165113 #6 Jun 02 2025 02:03:13 %S A165113 1,2,2,2,2,2,2,2,2,3,2,3,3,5,4,3,2,5,3,3,2,3,3,5,4,3,3,5,3,3,2,3,3,5, %T A165113 4,3,4,5,3,3,2,3,3,5,4,3,4,5,2,3,2,3,3,5,3,3,4,5,3,3,2,3,3,5,3,3,4,5, %U A165113 3,3,2,3,4,5,3,3,4,5,3,3,2,3,3,6,5,3,3,4,5,6,3,2,3,6,5,3,3,4,5,6,3,3,6,5,3 %N A165113 (Length of preperiodic part) + (length of cycle) of trajectory of n under iteration of the base-9 Kaprekar map in A165110. %H A165113 Joseph Myers, <a href="/A165113/b165113.txt">Table of n, a(n) for n=0..6561</a> %H A165113 <a href="/index/K#Kaprekar_map">Index entries for the Kaprekar map</a> %Y A165113 Cf. A165110, A165112. %Y A165113 In other bases: A164886 (base 2), A164996 (base 3), A165015 (base 4), A165035 (base 5), A165054 (base 6), A165074 (base 7), A165093 (base 8), A151963 (base 10). %K A165113 base,nonn %O A165113 0,2 %A A165113 _Joseph Myers_, Sep 04 2009