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 A259229 #7 Jun 22 2015 18:56:38 %S A259229 1,4,3,21,2,15,13,12,11,10,9,8,72,7,63,6,56,53,51,5,46,44,42,41,39,38, %T A259229 36,35,34,33,32,31,30,29,28,271,27,26,251,25,24,233,23,223,22,213,209, %U A259229 205,201,20,193,19,186,182,18,176,173,17,167,164,162,16,157 %N A259229 Inverse permutation to A259228. %H A259229 Paul Tek, <a href="/A259229/b259229.txt">Table of n, a(n) for n = 1..10000</a> %H A259229 <a href="/index/Per#IntegerPermutation">Index entries for sequences that are permutations of the natural numbers</a> %Y A259229 Cf. A259228. %K A259229 nonn,base %O A259229 1,2 %A A259229 _Paul Tek_, Jun 21 2015