%I #6 Apr 01 2023 08:50:24
%S 1,2,4,3,7,5,11,16,6,8,22,29,37,12,9,17,46,56,67,10,13,23,79,18,92,38,
%T 106,14,121,137,154,19,24,47,15,30,172,68,39,20,191,211,232,25,254,80,
%U 277,21,301,93,48,40,326,57,26,352,69,122,379,31,407,155,436
%N Inverse permutation to A361748.
%H Rémy Sigrist, <a href="/A361939/a361939.gp.txt">PARI program</a>
%H <a href="/index/Per#IntegerPermutation">Index entries for sequences that are permutations of the natural numbers</a>
%e A361748(10) = 20, so a(20) = 10.
%o (PARI) See Links section.
%Y Cf. A361748.
%K nonn
%O 1,2
%A _Rémy Sigrist_, Mar 31 2023