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 A164716 #17 Aug 25 2014 05:44:51 %S A164716 0,495,6174,53955,59994,61974,62964,63954,71973,74943,75933,82962, %T A164716 83952,420876,549945,631764,642654,750843,840852,851742,860832,862632, %U A164716 7509843,7519743,7619733,8429652,8439552,8649432,8719722,9529641,43208766 %N A164716 Consider the Kaprekar map n->K(n) defined in A151949. Sequence gives numbers belonging to cycles, including fixed points. %H A164716 Joseph Myers, <a href="/A164716/b164716.txt">Table of n, a(n) for n=1..29572</a> %H A164716 <a href="/index/K#Kaprekar_map">Index entries for the Kaprekar map</a> %Y A164716 Union of A099009 and A099010. Cf. A151949, A164717, A164718, A164720, A151965. %Y A164716 In other bases: A163205 (base 2), A164998 (base 3), A165017 (base 4), A165037 (base 5), A165056 (base 6), A165076 (base 7), A165095 (base 8), A165115 (base 9). [From _Joseph Myers_, Sep 05 2009] %K A164716 base,nonn %O A164716 1,2 %A A164716 _Joseph Myers_, Aug 23 2009