|
%I #6 Mar 03 2016 22:51:53
%S 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,
%T 27,28,29,30,31,32,33,34,35,36,45,38,39,40,41,42,43,44,49,46,47,48,37,
%U 50,51,52,53,54,55,56,57,58,59,60,73,62,63,64,65,66,67,68,69,70,71,72,81,90,91,76,77,78,79,80,85
%N Permutation of natural numbers: a(n) = A269171(3*n) / 3.
%C The first non-fixed term is a(37)=45.
%H Antti Karttunen, <a href="/A269393/b269393.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(3*n) / 3.
%o (Scheme) (define (A269393 n) (/ (A269171 (* 3 n)) 3))
%Y Inverse: A269394.
%Y Cf. A269171, A269395.
%K nonn
%O 1,2
%A _Antti Karttunen_, Mar 03 2016
|
