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a(n) is the unique k such that A349838(n) = A051281(k).
1

%I #12 Dec 11 2021 11:08:56

%S 1,2,3,6,8,4,7,11,9,14,30,5,19,29,12,22,23,33,44,15,27,28,50,17,18,45,

%T 46,53,20,21,35,47,48,24,25,37,51,63,64,91,10,26,41,42,43,57,58,71,85,

%U 59,60,61,78,79,31,65,66,82,83,100,34,69,13,36,55,56,74

%N a(n) is the unique k such that A349838(n) = A051281(k).

%C This sequence is a permutation of the natural numbers.

%H Rémy Sigrist, <a href="/A349917/b349917.txt">Table of n, a(n) for n = 1..3309</a>

%H Rémy Sigrist, <a href="/A349917/a349917.gp.txt">PARI program for A349917</a>

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

%e For n = 8:

%e - A349838(8) = 27559 = A051281(11),

%e - so a(8) = 11.

%o (PARI) See Links section.

%Y Cf. A051281, A349838.

%K nonn,look

%O 1,2

%A _Rémy Sigrist_, Dec 05 2021