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 A119475 #13 Jan 21 2022 07:53:33 %S A119475 1,2,3,5,4,9,6,17,7,10,33,8,11,18,13,12,65,19,34,14,21,20,15,129,35, %T A119475 25,16,22,66,37,23,36,257,26,24,67,41,38,27,130,69,29,28,39,49,68,42, %U A119475 40,30,513,131,73,31,43,70,258,45,32,44,50,133,71,81,132,46,51,74,72,47,1025 %N A119475 Inverse of permutation sequence A119474. %C A119475 Sequence is a permutation of the positive integers. %H A119475 Rémy Sigrist, <a href="/A119475/b119475.txt">Table of n, a(n) for n = 1..10000</a> %H A119475 Rémy Sigrist, <a href="/A119475/a119475.gp.txt">PARI program</a> %H A119475 <a href="/index/Per#IntegerPermutation">Index entries for sequences that are permutations of the natural numbers</a> %o A119475 (PARI) See Links section. %Y A119475 Cf. A119474. %K A119475 easy,nonn %O A119475 1,2 %A A119475 _Leroy Quet_, May 22 2006 %E A119475 More terms from _Joshua Zucker_, Jul 04 2006