A226387 - OEIS

%I #12 Mar 20 2022 21:42:53

%S 1,2,3,4,7,11,8,16,5,12,9,22,10,13,14,29,37,23,38,24,15,46,39,56,6,47,

%T 17,25,40,67,41,79,48,49,50,92,42,51,52,57,43,68,44,26,27,53,45,106,

%U 121,28,54,137,154,58,55,59,172,173,155,191,156,174,138,211

%N Inverse permutation to A085612.

%H Rémy Sigrist, <a href="/A226387/b226387.txt">Table of n, a(n) for n = 1..10000</a>

%H Rémy Sigrist, <a href="/A226387/a226387.gp.txt">PARI program for A226387</a>

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

%o (Haskell)

%o import Data.List (elemIndex); import Data.Maybe (fromJust)

%o a226387 = (+ 1) . fromJust . (`elemIndex` a085612_list)

%o (PARI) See Links section.

%Y Cf. A224401.

%K nonn

%O 1,2

%A _Reinhard Zumkeller_, Jun 05 2013

%E More terms from _Rémy Sigrist_, Apr 25 2021