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 A163916 #8 Jan 10 2021 08:55:06 %S A163916 0,1,3,2,7,5,6,4,9,8,10,11,14,13,12,15,16,17,18,19,20,21,23,22,30,29, %T A163916 31,28,24,25,27,26,58,59,57,56,54,53,55,52,60,61,63,62,51,50,49,48,32, %U A163916 35,34,33,36,37,39,38,46,44,47,45,40,41,43,42,127,125,126,124,119,117 %N A163916 Permutation A163356 applied thrice. %H A163916 Antti Karttunen, <a href="/A163916/b163916.txt">Table of n, a(n) for n = 0..16383</a> %H A163916 <a href="/index/Per#IntegerPermutation">Index entries for sequences that are permutations of the natural numbers</a> %F A163916 a(n) = A163356(A163356(A163356(n))) = A163356(A163906(n)). %Y A163916 Inverse: A163915. Cf. A163356, A163906. %K A163916 nonn %O A163916 0,3 %A A163916 _Antti Karttunen_, Sep 19 2009