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 A163908 #7 Mar 20 2022 21:42:13 %S A163908 0,1,2,4,12,24,17,18,11,3,6,7,8,13,5,9,10,22,15,16,21,28,29,37,39,30, %T A163908 31,23,48,47,38,58,62,42,51,52,41,32,33,25,27,34,35,43,20,19,26,14,73, %U A163908 61,85,72,71,70,59,83,49,50,40,60,84,97,98,112,144,180,161,162,179 %N A163908 Inverse permutation to A163907. %H A163908 A. Karttunen, <a href="/A163908/b163908.txt">Table of n, a(n) for n = 0..16383</a> %H A163908 <a href="/index/Per#IntegerPermutation">Index entries for sequences that are permutations of the natural numbers</a> %Y A163908 Inverse: A163907. a(n) = A054239(A163906(n)) = A163358(A163356(n)). See also A163358, A163918. %K A163908 nonn %O A163908 0,3 %A A163908 _Antti Karttunen_, Sep 19 2009