%I #7 Mar 19 2022 00:23:40
%S 1,2,4,3,5,7,6,8,12,9,13,10,14,11,15,19,16,20,17,21,18,22,30,23,31,24,
%T 32,25,33,26,34,27,35,28,36,29,37,43,38,44,39,45,40,46,41,47,42,48,60,
%U 49,61,50,62,51,63,52,64,53,65,54,66,55,67,56,68,57,69,58,70,59,71,79
%N Inverse permutation to A138607.
%H <a href="/index/Per#IntegerPermutation">Index entries for sequences that are permutations of the natural numbers</a>
%Y Inverse: A138607.
%K nonn
%O 1,2
%A _Antti Karttunen_, Oct 05 2009