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%I #11 Feb 13 2022 06:38:57
%S 1,2,7,3,15,4,8,9,5,16,17,6,10,31,11,22,18,34,19,23,12,30,53,13,24,20,
%T 35,36,21,25,14,52,49,61,55,26,33,37,42,38,32,27,54,62,50,51,63,69,28,
%U 57,39,43,44,40,58,29,68,64,84,81,85,65,75,71,59,41,45,98,46,56,60,70
%N Inverse integer permutation to A077220.
%H Rémy Sigrist, <a href="/A099130/b099130.txt">Table of n, a(n) for n = 1..10000</a>
%H Rémy Sigrist, <a href="/A099130/a099130.gp.txt">PARI program</a>
%H <a href="/index/Per#IntegerPermutation">Index entries for sequences that are permutations of the natural numbers</a>
%o (PARI) See Links section.
%Y Cf. A064928, A077220.
%K nonn
%O 1,2
%A _Reinhard Zumkeller_, Sep 28 2004