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 A375113 #10 Aug 04 2024 12:42:56 %S A375113 1,3,2,6,4,10,5,14,8,7,15,11,21,9,20,12,27,13,34,18,16,28,17,35,23,22, %T A375113 36,29,45,19,43,24,44,30,54,25,53,31,64,26,63,32,75,33,87,41,37,55,38, %U A375113 65,39,76,40,88,49,46,66,47,77,48,89,58,56,78,57,90,68 %N A375113 Inverse permutation to A375112. %H A375113 Rémy Sigrist, <a href="/A375113/b375113.txt">Table of n, a(n) for n = 1..10000</a> %H A375113 Rémy Sigrist, <a href="/A375113/a375113.gp.txt">PARI program</a> %H A375113 <a href="/index/Per#IntegerPermutation">Index entries for sequences that are permutations of the natural numbers</a> %e A375113 A375112(42) = 72, so a(72) = 42. %o A375113 (PARI) \\ See Links section. %Y A375113 Cf. A375112. %K A375113 nonn %O A375113 1,2 %A A375113 _Rémy Sigrist_, Jul 30 2024