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A269395 Permutation of natural numbers: a(n) = A269171(A269393(n)) = A269171(A269171(3*n)/3). 4

%I

%S 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,23,20,21,22,25,24,19,26,

%T 27,28,29,30,37,32,33,34,35,36,45,46,39,40,43,42,47,44,31,50,53,48,41,

%U 38,51,52,61,54,49,56,57,58,67,60,89,74,63,64,65,66,77,68,69,70,83,72,81,90,85,92,59,78,91,80,79

%N Permutation of natural numbers: a(n) = A269171(A269393(n)) = A269171(A269171(3*n)/3).

%C Composition of A269171 with a permutation of natural numbers obtained from its trisection.

%H Antti Karttunen, <a href="/A269395/b269395.txt">Table of n, a(n) for n = 1..8192</a>

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

%F a(n) = A269171(A269393(n)) = A269171(A269171(3*n)/3).

%o (Scheme) (define (A269395 n) (A269171 (A269393 n)))

%Y Inverse: A269396.

%Y Cf. A269393.

%Y Differs from A255407 and A269171 for the first time at n=37, which here a(37)=45, instead of 41.

%K nonn

%O 1,2

%A _Antti Karttunen_, Mar 03 2016

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Last modified August 5 15:15 EDT 2021. Contains 346472 sequences. (Running on oeis4.)