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 A226093 #4 May 26 2013 21:57:25 %S A226093 1,3,2,5,6,4,8,10,7,9,11,12,14,18,16,20,15,17,19,13,21,23,26,22,24,28, %T A226093 34,32,30,39,42,36,25,27,29,31,33,35,37,38,40,46,44,48,50,52,54,41,47, %U A226093 49,58,45,56,60,62,64,66,68,70,72,77,79,93,74,43,53,51 %N A226093 Inverse permutation to A226077. %H A226093 Reinhard Zumkeller, <a href="/A226093/b226093.txt">Table of n, a(n) for n = 1..10000</a> %H A226093 <a href="/index/Per#IntegerPermutation">Index entries for sequences that are permutations of the natural numbers</a> %o A226093 (Haskell) %o A226093 a226093 = (+ 1) . fromJust . (`elemIndex` a226077_list) %K A226093 nonn %O A226093 1,2 %A A226093 _Reinhard Zumkeller_, May 26 2013