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 A165107 #6 Jun 02 2025 02:02:29 %S A165107 0,12,66,513,514,4097,4124,32769,32779,32868,262145,262148,262291, %T A165107 2097153,2097155,2097227,16777217,16777218,16777219,16782116, %U A165107 134217729,134217731,134217739,134218315,134219007,1073741825,1073741826 %N A165107 a(n) = smallest number that leads to a new cycle under the base-8 Kaprekar map of A165090. %C A165107 Initial terms in base 8: 0, 14, 102, 1001, 1002, 10001, 10034, 100001, 100013, 100144. %H A165107 Joseph Myers, <a href="/A165107/b165107.txt">Table of n, a(n) for n=1..8775</a> %H A165107 <a href="/index/K#Kaprekar_map">Index entries for the Kaprekar map</a> %Y A165107 Cf. A165090, A165095, A165108, A165109. %Y A165107 In other bases: A164887 (base 2), A165009 (base 3), A165029 (base 4), A165048 (base 5), A165068 (base 6), A165087 (base 7), A165127 (base 9), A151964 (base 10). %K A165107 base,nonn %O A165107 1,2 %A A165107 _Joseph Myers_, Sep 04 2009