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%I #15 Jan 10 2021 05:55:08
%S 0,1,3,2,7,5,6,4,9,8,10,11,14,13,12,15,16,17,18,19,20,21,23,22,28,29,
%T 31,30,27,25,24,26,48,51,50,49,52,53,55,54,60,61,63,62,57,59,56,58,47,
%U 46,45,44,39,37,36,38,35,34,32,33,40,41,43,42,127,125,126,124,118,117
%N Permutation A163355 applied thrice.
%H Antti Karttunen, <a href="/A163915/b163915.txt">Table of n, a(n) for n = 0..65535</a>
%H <a href="/index/Per#IntegerPermutation">Index entries for sequences that are permutations of the natural numbers</a>
%F a(n) = A163355(A163355(A163355(n))) = A163355(A163905(n)).
%Y Inverse: A163916. Array A163917 shows this in N X N grid. See also A163905.
%Y Cf. A163355
%K nonn
%O 0,3
%A _Antti Karttunen_, Sep 19 2009
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