A287929 - OEIS

%I #13 Jun 04 2017 16:37:30

%S 1,2,3,4,5,6,7,8,9,10,12,11,13,15,14,16,18,17,19,20,22,24,21,23,25,27,

%T 29,26,28,30,32,31,34,36,33,35,38,37,39,40,42,45,44,43,41,46,47,48,49,

%U 50,52,55,53,51,57,59,54,56,58,60,62,64,66,67,61,63,65

%N Inverse permutation to A287928.

%H Rémy Sigrist, <a href="/A287929/b287929.txt">Table of n, a(n) for n = 1..10000</a>

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

%e A287928(11) = 12, hence a(12) = 11.

%e A287928(12) = 11, hence a(11) = 12.

%e A287928(14) = 15, hence a(15) = 14.

%e A287928(15) = 14, hence a(14) = 15.

%e A287928(17) = 18, hence a(18) = 17.

%e A287928(18) = 17, hence a(17) = 18.

%e A287928(21) = 23, hence a(23) = 21.

%e A287928(22) = 21, hence a(21) = 22.

%e A287928(23) = 24, hence a(24) = 23.

%e A287928(24) = 22, hence a(22) = 24.

%Y Cf. A287928.

%K nonn,base

%O 1,2

%A _Rémy Sigrist_, Jun 03 2017