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 A303076 #11 May 03 2018 11:22:12 %S A303076 1,3,2,7,5,6,4,12,8,13,9,16,10,17,11,19,20,21,14,23,24,29,15,25,26,28, %T A303076 27,30,18,37,22,32,33,34,35,59,36,40,39,38,41,42,47,60,57,65,43,44,45, %U A303076 50,46,51,62,69,48,49,53,74,52,80,54,66,31,55,56,77,58 %N A303076 Inverse permutation to A303075. %H A303076 Rémy Sigrist, <a href="/A303076/b303076.txt">Table of n, a(n) for n = 1..10000</a> %H A303076 <a href="/index/Per#IntegerPermutation">Index entries for sequences that are permutations of the natural numbers</a> %e A303076 A303075(7) = 4, hence a(4) = 7. %Y A303076 Cf. A303075. %K A303076 nonn,base,look %O A303076 1,2 %A A303076 _Rémy Sigrist_, Apr 18 2018