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 A300890 #11 Mar 15 2018 15:07:08 %S A300890 1,2,4,8,5,6,9,3,10,12,13,7,18,28,16,32,17,30,14,36,56,20,24,21,22,25, %T A300890 15,11,19,26,29,23,27,31,66,33,62,37,54,38,52,34,60,40,48,41,46,44,42, %U A300890 45,39,50,49,35,58,53,43,47,51,59,138,61,134,57,55,146 %N A300890 Lexicographically earliest sequence of distinct positive terms such that, for any n > 0, 2*a(n) + a(n+1) is a Fibbinary number (A003714). %C A300890 The scatterplot of the sequence has fractal features. %H A300890 Rémy Sigrist, <a href="/A300890/b300890.txt">Table of n, a(n) for n = 1..10000</a> %H A300890 Rémy Sigrist, <a href="/A300890/a300890.png">Scatterplot of the first 250000 terms</a> %H A300890 Rémy Sigrist, <a href="/A300890/a300890.txt">C++ program for A300890</a> %o A300890 (C++) See Links section. %Y A300890 Cf. A003714. %K A300890 nonn,base,look %O A300890 1,2 %A A300890 _Rémy Sigrist_, Mar 14 2018