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 A084470 #8 Jul 29 2017 12:44:51 %S A084470 1,2,3,4,7,5,6,8,9,11,12,10,15,17,13,14,18,16,23,19,21,22,20,24,31,25, %T A084470 27,29,30,28,26,32,33,35,37,39,40,38,36,34,43,45,47,49,41,42,50,48,46, %U A084470 44,55,57,59,51,53,54,52,60,58,56,67,69,71,61,63,65,66,64,62,72,70,68 %N A084470 Position of A084468(n) in A084467(n). %H A084470 A. Karttunen, <a href="/A084507/a084507.scm.txt">Scheme-program for computing this sequence</a> %H A084470 <a href="/index/Per#IntegerPermutation">Index entries for sequences that are permutations of the natural numbers</a> %Y A084470 Inverse permutation: A084469. %K A084470 nonn %O A084470 1,2 %A A084470 _Antti Karttunen_, Jun 02 2003