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 A367289 #5 Nov 13 2023 12:27:21 %S A367289 0,1,3,5,7,2,9,11,13,15,17,19,21,23,25,27,29,31,4,33,35,37,39,41,43, %T A367289 45,47,49,51,53,55,57,59,61,63,65,67,69,71,6,73,75,77,79,81,83,85,87, %U A367289 89,91,93,95,97,99,101,103,105,107,109,111,8,113,115,117,119 %N A367289 Inverse permutation to A367288. %H A367289 Rémy Sigrist, <a href="/A367289/a367289.gp.txt">PARI program</a> %H A367289 <a href="/index/Per#IntegerPermutation">Index entries for sequences that are permutations of the natural numbers</a> %e A367289 A367288(77) = 42, hence A367288(42) = 77. %o A367289 (PARI) See Links section. %Y A367289 Cf. A367288. %K A367289 nonn %O A367289 0,3 %A A367289 _Rémy Sigrist_, Nov 12 2023