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 A165048 #6 Jun 02 2025 01:58:00 %S A165048 0,8,27,126,626,3126,15626,78126,390626,1953126,9765626,9765824, %T A165048 48828126,244140626,244140699,244141624,1220703126,1220703127, %U A165048 6103515626,6103515639,6103515656,6103515699,6103515999,6103520624 %N A165048 a(n) = smallest number that leads to a new cycle under the base-5 Kaprekar map of A165032. %C A165048 Initial terms in base 5: 0, 13, 102, 1001, 10001, 100001, 1000001, 10000001, 100000001, 1000000001. %H A165048 Joseph Myers, <a href="/A165048/b165048.txt">Table of n, a(n) for n=1..15716</a> %H A165048 <a href="/index/K#Kaprekar_map">Index entries for the Kaprekar map</a> %Y A165048 Cf. A165032, A165037, A165049, A165050. %Y A165048 In other bases: A164887 (base 2), A165009 (base 3), A165029 (base 4), A165068 (base 6), A165087 (base 7), A165107 (base 8), A165127 (base 9), A151964 (base 10). %K A165048 base,nonn %O A165048 1,2 %A A165048 _Joseph Myers_, Sep 04 2009