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 A151966 #5 Mar 30 2012 17:28:42 %S A151966 1,1,1,4,4,2,7,1,1,8,3,7,1,1,1,14,1,3,3,3,3,7,1,1,1,5,8,1,3,3,3,3,3,3, %T A151966 3,3,7,1,3,3,1,1,1,1,5,5,2,5,1,7,3,3,3,3,3,3,3,3,3,3,3,3,3,1,3,1,3,3, %U A151966 3,3,3,3,1,1,1,1,5,5,5,5,5,2,1,1,3,7,3,3,3,3,3,3,3,3,1,3,3,3,3,3,3,3,3,3,3 %N A151966 Length of cycle corresponding to n-th term of A151964. %H A151966 Joseph Myers, <a href="/A151966/b151966.txt">Table of n, a(n) for n=1..10163</a> [From _Joseph Myers_, Aug 22 2009] %H A151966 <a href="/index/K#Kaprekar_map">Index entries for the Kaprekar map</a> %Y A151966 In other bases: A000012 (base 2), A165011 (base 3), A165031 (base 4), A165050 (base 5), A165070 (base 6), A165089 (base 7), A165109 (base 8), A165129 (base 9). [From _Joseph Myers_, Sep 05 2009] %K A151966 nonn,base %O A151966 1,4 %A A151966 _Klaus Brockhaus_, Aug 19 2009 %E A151966 Extended by _Joseph Myers_, Aug 22 2009