%I #13 Apr 17 2024 10:32:06

%S 0,1,3,2,6,7,4,5,14,12,13,15,8,10,11,9,28,29,24,25,26,27,30,31,16,17,

%T 20,21,22,23,18,19,60,56,57,61,48,52,53,49,50,54,55,51,62,58,59,63,32,

%U 36,37,33,44,40,41,45,46,42,43,47,34,38,39,35,120,121,112

%N Inverse permutation to A371961.

%H Rémy Sigrist, <a href="/A371962/b371962.txt">Table of n, a(n) for n = 0..8191</a>

%H Rémy Sigrist, <a href="/A371962/a371962.gp.txt">PARI program</a>

%H <a href="/index/Per#IntegerPermutation">Index entries for sequences that are permutations of the natural numbers</a>

%e A371961(42) = 57, so a(57) = 42.

%o (PARI) \\ See Links section.

%Y Cf. A371961.

%K nonn,base

%O 0,3

%A _Rémy Sigrist_, Apr 14 2024