A330576 - OEIS

%I #10 Dec 19 2019 09:49:55

%S 1,3,6,2,8,4,10,5,12,14,20,7,22,15,24,9,26,16,28,11,30,17,32,13,34,18,

%T 36,19,38,40,52,21,54,41,56,23,58,42,60,25,62,43,64,27,66,44,68,29,70,

%U 45,72,31,74,46,76,33,78,47,80,35,82,48,84,37,86,49,88

%N Inverse permutation to A330530.

%H Rémy Sigrist, <a href="/A330576/b330576.txt">Table of n, a(n) for n = 1..10000</a>

%H Rémy Sigrist, <a href="/A330576/a330576.gp.txt">PARI program for A330576</a>

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

%e A330530(2) = 4, hence a(4) = 2.

%o (PARI) See Links section.

%Y Cf. A330530.

%K nonn

%O 1,2

%A _Rémy Sigrist_, Dec 18 2019