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 A261729 #7 Sep 01 2015 03:41:37 %S A261729 0,1,2,3,4,5,6,7,8,9,19,18,17,16,15,14,13,12,11,10,20,21,22,23,24,25, %T A261729 26,27,28,29,39,38,37,36,35,34,33,32,31,30,40,41,42,43,44,45,46,47,48, %U A261729 49,59,58,57,56,55,54,53,52,51,50,60,61,62,63,64,65,66,67 %N A261729 Putative inverse of conjectured permutation in A261725. %C A261729 a(n) = A003100(n) for n < 100, but a(100) = 109, A003100(100) = 190. %C A261729 a(n) = A118757(n) for n < 100, but a(100) = 109, A118757(100) = 190. %C A261729 a(n) = A118758(n) for n < 201, but a(201) = 209, A118758(201) = 211. %C A261729 a(n) = A174025(n) for n < 100, but a(100) = 109, A174025(100) = 199. %C A261729 a(n) = A261725(n) for n < 100, but a(100) = 109, A261725(100) = 190. %H A261729 Paul Tek, <a href="/A261729/b261729.txt">Table of n, a(n) for n = 0..10000</a> %Y A261729 Cf. A261725. %K A261729 nonn,base %O A261729 0,3 %A A261729 _Paul Tek_, Aug 30 2015