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 A113234 #10 Sep 15 2014 11:18:13 %S A113234 1,2,3,4,9,10,8,6,7,16,19,12,36,14,44,5,26,20,30,22,17,54,48,13,18,21, %T A113234 31,46,71,83,72,28,11,33,80,24,37,25,27,39,76,74,47,85,88,92,128,41, %U A113234 32,107,69,29,135,115,181,42,49,96,124,65,98,185,93,51,43,15,57,60,112,45 %N A113234 A113233(A113233(n)). %C A113234 Inverse integer permutation of A113232; %C A113234 A109812(a(n)) = a(A109812(n)) = A113233(n). %H A113234 Reinhard Zumkeller, <a href="/A113234/b113234.txt">Table of n, a(n) for n = 1..10000</a> %H A113234 <a href="/index/Per#IntegerPermutation">Index entries for sequences that are permutations of the natural numbers</a> %o A113234 (Haskell) %o A113234 a113234 = a113233 . a113233 -- _Reinhard Zumkeller_, Sep 15 2014 %K A113234 nonn %O A113234 1,2 %A A113234 _Reinhard Zumkeller_, Oct 19 2005 %E A113234 Erroneous data corrected by _Reinhard Zumkeller_, Sep 15 2014