%I #13 Jan 10 2021 19:32:39
%S 0,1,3,2,5,4,6,7,12,13,15,14,9,8,10,11,20,21,23,22,17,16,18,19,24,25,
%T 27,26,29,28,30,31,51,50,48,49,54,55,53,52,63,62,60,61,58,59,57,56,39,
%U 38,36,37,34,35,33,32,43,42,40,41,46,47,45,44,89,88,90,91
%N Inverse permutation to A340402.
%H Rémy Sigrist, <a href="/A340478/b340478.txt">Table of n, a(n) for n = 0..8191</a>
%H Rémy Sigrist, <a href="/A340478/a340478.png">Scatterplot of the first 2^16 terms</a>
%H Rémy Sigrist, <a href="/A340478/a340478.gp.txt">PARI program for A340478</a>
%H <a href="/index/Per#IntegerPermutation">Index entries for sequences that are permutations of the natural numbers</a>
%F a(A340402(n)) = A340402(a(n)) = n.
%e A340402(41) = 59, so a(59) = 41.
%o (PARI) See Links section.
%Y Cf. A340402.
%K nonn,look,base
%O 0,3
%A _Rémy Sigrist_, Jan 09 2021