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 A100211 #9 Mar 30 2012 18:50:48 %S A100211 1,2,3,6,5,14,9,4,7,8,13,10,11,16,17,24,19,20,15,12,29,18,21,26,25,28, %T A100211 37,34,23,22,39,36,33,30,27,44,35,46,31,32,41,52,51,40,47,42,55,56,43, %U A100211 38,69,48,57,62,53,68,49,54,63,60,61,58,75,64,45,66,77,50,81,80,65,72 %N A100211 Inverse to A100208. %H A100211 T. D. Noe, <a href="/A100211/b100211.txt">Table of n, a(n) for n = 1..1000</a> %H A100211 <a href="/index/Per#IntegerPermutation">Index entries for sequences that are permutations of the natural numbers</a> %K A100211 nonn %O A100211 1,2 %A A100211 _Reinhard Zumkeller_, Nov 08 2004