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 A358141 #9 Nov 03 2022 12:20:24 %S A358141 1,2,3,4,5,6,8,7,9,10,13,11,15,14,12,16,17,18,22,19,25,23,20,29,26,24, %T A358141 32,27,30,28,31,21,33,34,39,35,43,40,36,49,44,41,55,57,50,45,60,37,46, %U A358141 51,47,58,52,53,54,59,61,38,48,56,42,63,64,62,65,66,72 %N A358141 Inverse permutation to A358122. %H A358141 Rémy Sigrist, <a href="/A358141/b358141.txt">Table of n, a(n) for n = 1..8192</a> %H A358141 Rémy Sigrist, <a href="/A358141/a358141.gp.txt">PARI program</a> %H A358141 <a href="/index/Per#IntegerPermutation">Index entries for sequences that are permutations of the natural numbers</a> %e A358141 A358122(42) = 61, so a(61) = 42. %o A358141 (PARI) See Links section. %Y A358141 Cf. A358122. %K A358141 nonn %O A358141 1,2 %A A358141 _Rémy Sigrist_, Oct 31 2022