%I #7 Apr 04 2015 21:49:03
%S 1,2,4,3,6,5,9,7,12,8,14,10,17,11,19,13,22,15,25,16,27,18,30,20,33,21,
%T 35,23,38,24,40,26,43,28,46,29,48,31,51,32,53,34,56,36,59,37,61,39,64,
%U 41,67,42,69,44,72,45,74,47,77,49,80,50,82,52,85,54,88,55,90,57,93,58
%N Lexicographically earliest permutation of the natural numbers such that all positive differences between succeeding terms occur exactly once.
%C inverse: A113324; A113323 = a(a(n));
%C A113322(n) = a(n+1) - a(n).
%H <a href="/index/Per#IntegerPermutation">Index entries for sequences that are permutations of the natural numbers</a>
%K nonn
%O 1,2
%A _Reinhard Zumkeller_, Oct 26 2005