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 A151964 #5 Mar 30 2012 17:28:42 %S A151964 0,102,1001,10001,10003,10045,100001,100147,100155,1000001,10000001, %T A151964 10000012,10000024,10001567,100000001,100000002,100011555,1000000001, %U A151964 1000000003,1000000004,1000000005,1000000014,1000000024,1000002499 %N A151964 a(n) = smallest number that leads to a new cycle under the Kaprekar map of A151949. %H A151964 Joseph Myers, <a href="/A151964/b151964.txt">Table of n, a(n) for n=1..10163</a> [From _Joseph Myers_, Aug 22 2009] %H A151964 <a href="/index/K#Kaprekar_map">Index entries for the Kaprekar map</a> %Y A151964 Cf. A151949, A151965, A151966. %Y A151964 In other bases: A164887 (base 2), A165009 (base 3), A165029 (base 4), A165048 (base 5), A165068 (base 6), A165087 (base 7), A165107 (base 8), A165127 (base 9). [From _Joseph Myers_, Sep 05 2009] %K A151964 nonn,base %O A151964 1,2 %A A151964 _Klaus Brockhaus_, Aug 19 2009 %E A151964 Extended by _Joseph Myers_, Aug 22 2009