%I #9 Apr 15 2021 01:08:25
%S 0,1,2,4,3,5,7,9,11,13,12,8,10,6,14,16,18,20,24,30,22,28,26,32,34,36,
%T 38,40,39,35,37,33,25,27,21,29,31,23,17,19,15,41,43,45,47,51,57,49,55,
%U 53,59,63,69,71,79,93,77,91,89,61,67,65,75,87,85,73,83,81
%N Inverse permutation to A343312.
%C This sequence has interesting graphical features.
%H Rémy Sigrist, <a href="/A343313/b343313.txt">Table of n, a(n) for n = 0..9842</a>
%H Rémy Sigrist, <a href="/A343313/a343313.png">Scatterplot of the sequence for n = 0..3^9</a>
%H Rémy Sigrist, <a href="/A343313/a343313.gp.txt">PARI program for A343313</a>
%H <a href="/index/Per#IntegerPermutation">Index entries for sequences that are permutations of the natural numbers</a>
%e A343312(42) = 121, so a(121) = 42.
%o (PARI) See Links section.
%Y Cf. A343312.
%K nonn,base
%O 0,3
%A _Rémy Sigrist_, Apr 14 2021