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 A165001 #6 Jun 02 2025 01:54:53 %S A165001 2,2,3,3,3,2,2,3,3,3,2,2,4,4,4,4,3,3,3,3,3,3,2,2,2,2,5,5,5,5,5,3,3,3, %T A165001 3,3,3,2,2,2,2,6,6,6,6,6,6,5,5,5,5,5,3,3,3,3,3,3,2,2,3,3,3,2,2,4,4,2, %U A165001 4,2,4,6,6,6,6,6,6,5,5,5,5,5,3,3,3,3,3,3,2,2,5,5,5,5,5,3,3,3,2,2,4,4,4,4,4 %N A165001 Length of cycle mentioned in A165000. %H A165001 Joseph Myers, <a href="/A165001/b165001.txt">Table of n, a(n) for n=1..8276</a> %H A165001 <a href="/index/K#Kaprekar_map">Index entries for the Kaprekar map</a> %Y A165001 Cf. A164993, A165000, A164999, A165003, A165005, A165011. %Y A165001 In other bases: Empty (base 2), A165020 (base 4), A165040 (base 5), A165059 (base 6), A165079 (base 7), A165098 (base 8), A165118 (base 9), A164715 (base 10). %K A165001 base,nonn %O A165001 1,1 %A A165001 _Joseph Myers_, Sep 04 2009