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 A101546 #12 Feb 08 2016 09:12:30 %S A101546 1,2,3,4,5,13,9,6,11,7,8,29,10,18,20,12,23,25,14,15,53,16,17,63,33,19, %T A101546 36,39,21,41,22,43,45,24,49,48,26,27,103,28,30,113,58,31,61,32,34,129, %U A101546 35,69,70,37,73,75,38,40,153,78,42,82,83,44,86,89,46,91,47,93,95,50,98 %N A101546 a(n) = A101544(A101544(n)). %C A101546 Inverse permutation to A101547. %H A101546 Ivan Neretin, <a href="/A101546/b101546.txt">Table of n, a(n) for n = 1..10000</a> %H A101546 <a href="/index/Per#IntegerPermutation">Index entries for sequences that are permutations of the natural numbers</a> %Y A101546 Cf. A101544, A101547. %K A101546 nonn %O A101546 1,2 %A A101546 _Reinhard Zumkeller_, Dec 06 2004