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 A353266 #15 Mar 17 2025 15:40:49 %S A353266 1,2,3,5,4,7,11,13,6,9,8,17,10,19,23,29,12,31,14,37,15,41,43,47,21,33, %T A353266 49,53,25,59,61,67,16,69,38,71,18,73,62,79,22,83,82,89,74,97,101,103, %U A353266 20,107,109,113,27,127,131,137,26,121,139,149,151,157,163,167 %N A353266 Inverse to A352809. %H A353266 Rémy Sigrist, <a href="/A353266/b353266.txt">Table of n, a(n) for n = 0..10000</a> %H A353266 Rémy Sigrist, <a href="/A353266/a353266.gp.txt">PARI program</a> %H A353266 <a href="/index/Per#IntegerPermutation">Index entries for sequences that are permutations of the natural numbers</a> %e A353266 A352809(42) = 160, so a(160) = 42. %o A353266 (PARI) \\ See Links section. %Y A353266 Cf. A352809. %K A353266 nonn,base,look %O A353266 0,2 %A A353266 _Rémy Sigrist_, Apr 09 2022