%I #10 Jul 21 2024 12:48:46
%S 0,1,3,2,4,6,7,9,12,5,8,11,10,13,15,16,19,23,17,20,25,24,27,31,32,35,
%T 39,14,18,22,21,26,29,30,34,38,28,33,37,36,40,42,43,47,52,44,48,54,53,
%U 58,63,64,70,76,45,49,56,55,59,66,67,72,79,65,71,78,77,81
%N Inverse permutation to A374789.
%H Rémy Sigrist, <a href="/A374790/b374790.txt">Table of n, a(n) for n = 0..9841</a>
%H Rémy Sigrist, <a href="/A374790/a374790.gp.txt">PARI program</a>
%H <a href="/index/Per#IntegerPermutation">Index entries for sequences that are permutations of the natural numbers</a>
%e A374789(42) = 41, so a(41) = 42.
%o (PARI) \\ See Links section.
%Y Cf. A374789.
%K nonn,base
%O 0,3
%A _Rémy Sigrist_, Jul 20 2024