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 A165020 #6 Jun 02 2025 01:56:02 %S A165020 2,2,2,2,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3, %T A165020 3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3, %U A165020 3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3 %N A165020 Length of cycle mentioned in A165019. %H A165020 Joseph Myers, <a href="/A165020/b165020.txt">Table of n, a(n) for n=1..199</a> %H A165020 <a href="/index/K#Kaprekar_map">Index entries for the Kaprekar map</a> %Y A165020 Cf. A165012, A165019, A165018, A165022, A165024, A165031. %Y A165020 In other bases: Empty (base 2), A165001 (base 3), A165040 (base 5), A165059 (base 6), A165079 (base 7), A165098 (base 8), A165118 (base 9), A164715 (base 10). %K A165020 base,nonn %O A165020 1,1 %A A165020 _Joseph Myers_, Sep 04 2009