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 A165013 #12 Sep 25 2018 09:17:44 %S A165013 0,0,0,0,1,0,1,2,2,1,0,1,3,2,1,0,5,5,10,15,5,0,5,10,10,5,5,10,15,10, %T A165013 10,10,10,10,10,15,10,5,5,10,10,5,0,5,15,10,5,5,15,15,15,15,15,10,10, %U A165013 10,15,10,5,5,15,10,5,0,21,25,46,67,25,21,42,63,46,42,46,67,67,63,67,71,25,21 %N A165013 a(n) = A165012(n)/3. %H A165013 Seiichi Manyama, <a href="/A165013/b165013.txt">Table of n, a(n) for n = 0..8192</a> (terms 0..1024 from Joseph Myers) %H A165013 <a href="/index/K#Kaprekar_map">Index entries for the Kaprekar map</a> %Y A165013 Cf. A165012. %Y A165013 In other bases: A164884 (base 2), A164994 (base 3), A165033 (base 5), A165052 (base 6), A165072 (base 7), A165091 (base 8), A165111 (base 9), A151950 (base 10). %K A165013 base,nonn %O A165013 0,8 %A A165013 _Joseph Myers_, Sep 04 2009