%I A143054
%S A143054 0,1,4,2,3,7,8,9,5,6,12,13,14,15,16,10,11,19,20,21,22,23,24,25,17,18,28,
%T A143054 29,30,31,32,33,34,35,36,26,27,39,40,41,42,43,44,45,46,47,48,49,37,38,
%U A143054 52,53,54,55,56,57,58,59,60,61,62,63,64,50,51,67,68,69,70,71,72,73,74
%N A143054 A143052(A143052(n)).
%C A143054 Permutation of the natural numbers, inverse: A143053;
%C A143054 For n>1: a(A008865(n))=A000290(n),
%C A143054 a(A000290(n))=A000290(n)-A005408(n-2).
%H A143054 <a href="Sindx_Per.html#IntegerPermutation">Index entries for sequences 
               that are permutations of the natural numbers</a>
%Y A143054 Sequence in context: A134074 A010315 A021240 this_sequence A016512 A026246 
               A143051
%Y A143054 Adjacent sequences: A143051 A143052 A143053 this_sequence A143055 A143056 
               A143057
%K A143054 nonn
%O A143054 0,3
%A A143054 Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Jul 20 2008