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 A105109 #10 Mar 22 2023 14:53:59 %S A105109 0,1,4,3,2,11,7,6,5,8,10,9,24,19,14,13,12,15,18,17,16,26,22,21,20,23, %T A105109 25,56,39,34,29,28,27,30,33,32,31,42,37,36,35,38,41,40,55,50,45,44,43, %U A105109 46,49,48,47,57,53,52,51,54 %N A105109 a(n) defined by A103202(a(n)) = A102370(n). %C A105109 A permutation of the nonnegative numbers. %H A105109 David Applegate, Benoit Cloitre, Philippe Deléham and N. J. A. Sloane, Sloping binary numbers: a new sequence related to the binary numbers [<a href="http://neilsloane.com/doc/slopey.pdf">pdf</a>, <a href="http://neilsloane.com/doc/slopey.ps">ps</a>]. %Y A105109 Cf. A102370, A103202. %K A105109 nonn,base %O A105109 0,3 %A A105109 _Philippe Deléham_, Apr 30 2005