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%I #5 Mar 30 2012 18:51:00
%S 1,2,3,4,5,6,10,9,8,7,12,14,16,11,13,15,24,21,19,17,20,22,26,18,23,25,
%T 36,33,30,27,38,34,31,28,32,35,40,29,37,39,43,46,55,41,56,49,48,42,58,
%U 51,50,54,60,44,52,45,53,47,59,57,61,62,69,64,77,65,70,63,85,74,87,66
%N A143691(A143691(n)).
%C Permutation of the natural numbers with inverse A143694.
%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_, Aug 29 2008
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