%I #4 Mar 30 2012 18:51:04
%S 1,17,33,8,24,7,44,52,57,5,9,13,29,4,20,6,42,50,41,21,25,68,14,43,73,
%T 76,80,18,45,2,3,15,90,92,22,47,77,99,102,12,16,59,94,65,79,101,110,
%U 30,51,28,32,74,23,91,111,117,34,53,83,39,40,78,63,109,118,123,36,38,72,46,48
%N A162502(A162502(n)).
%C Inverse of A162503: a(A162503(n)) = A162503(a(n)) = n;
%C A162502(n) = A162501(a(n)) = a(A162501(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_, Jul 05 2009