%I #7 Mar 31 2012 13:21:11

%S 1,3,2,5,9,4,15,7,17,11,23,6,8,16,10,13,19,25,29,33,41,37,14,18,24,12,

%T 49,45,53,63,57,21,27,35,31,47,59,55,67,39,43,71,22,75,79,85,89,30,20,

%U 28,26,36,44,34,32,46,56,58,54,42,40,38,48,51,61,65,73,69,81,77,95,87

%N a(n) = First integer i such that A116626(i) = n, 0 if n never occurs in A116626.

%C If A116626 is really a permutation of natural numbers, then this is as well and no zeros are needed.

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

%Y Inverse: A116626.

%K nonn

%O 1,2

%A _Paul D. Hanna_ and _Antti Karttunen_, Feb 21 2006