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 A165111 #6 Jun 02 2025 02:02:59 %S A165111 0,0,0,0,0,0,0,0,0,1,0,1,2,3,4,5,6,7,2,1,0,1,2,3,4,5,6,3,2,1,0,1,2,3, %T A165111 4,5,4,3,2,1,0,1,2,3,4,5,4,3,2,1,0,1,2,3,6,5,4,3,2,1,0,1,2,7,6,5,4,3, %U A165111 2,1,0,1,8,7,6,5,4,3,2,1,0,10,10,20,30,40,50,60,70,80,10,0,10,20,30,40,50 %N A165111 A165110(n)/8. %H A165111 Joseph Myers, <a href="/A165111/b165111.txt">Table of n, a(n) for n=0..6561</a> %H A165111 <a href="/index/K#Kaprekar_map">Index entries for the Kaprekar map</a> %Y A165111 Cf. A165110. %Y A165111 In other bases: A164884 (base 2), A164994 (base 3), A165013 (base 4), A165033 (base 5), A165052 (base 6), A165072 (base 7), A165091 (base 8), A151950 (base 10). %K A165111 base,nonn %O A165111 0,13 %A A165111 _Joseph Myers_, Sep 04 2009