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%I #5 Mar 07 2016 12:30:38
%S 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,25,20,21,22,19,24,23,26,
%T 27,28,29,30,45,32,33,34,35,36,31,50,39,40,49,42,41,44,37,38,43,48,55,
%U 46,51,52,47,54,105,56,57,58,77,60,53,90,63,64,65,66,59,68,69,70,97,72,181,62,99,100,67,78,81,80,73
%N Permutation of natural numbers: a(n) = A269394(A269172(n)) = A269172(3*A269172(n)) / 3.
%C Composition of A269172 with a permutation of natural numbers obtained from its trisection.
%H <a href="/index/Per#IntegerPermutation">Index entries for sequences that are permutations of the natural numbers</a>
%F a(n) = A269394(A269172(n)) = A269172(3*A269172(n)) / 3.
%o (Scheme) (define (A269396 n) (A269394 (A269172 n)))
%Y Inverse: A269395.
%Y Cf. A269394.
%Y Differs from A255408 and A269172 for the first time at n=31, which here a(31)=45, instead of 49.
%K nonn
%O 1,2
%A _Antti Karttunen_, Mar 03 2016
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