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A098312 A098311(A098311(n)). 3

%I

%S 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,18,17,19,16,20,21,25,22,28,23,29,

%T 24,26,27,30,31,32,33,41,35,47,34,36,45,51,37,43,39,49,38,40,42,44,55,

%U 57,50,48,65,71,53,59,56,60,46,61,68,72,63,64,52,67,54,73,69,58,62,66

%N A098311(A098311(n)).

%C Permutation of the natural numbers with inverse A098314:

%C a(A098314(n)) = A098314(a(n)) = n;

%C a(A098313(n)) = A098313(a(n)) = A098311(n).

%H Reinhard Zumkeller, <a href="/A098312/b098312.txt">Table of n, a(n) for n = 1..10000</a>

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

%o (Haskell)

%o a098312 = a098311 . a098311 -- _Reinhard Zumkeller_, Oct 11 2014

%K nonn

%O 1,2

%A _Reinhard Zumkeller_, Sep 02 2004

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Last modified June 17 17:05 EDT 2021. Contains 345085 sequences. (Running on oeis4.)