cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A084455 Permutation of Z, obtained by reflecting the juggling sequence A084452 from positive to negative numbers (with zero thrown at beat 0), folded to N with functions N2Z and Z2N.

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%I A084455 #9 Jul 29 2017 13:12:06
%S A084455 1,10,2,12,4,14,6,8,9,20,3,22,5,24,7,16,17,18,19,32,11,28,13,34,15,26,
%T A084455 27,38,23,30,31,44,21,46,25,36,37,50,29,40,41,42,43,58,33,52,35,48,49,
%U A084455 62,39,64,47,54,55,56,57,72,45,60,61,74,51,76,53,66,67,68,69,70,71,86
%N A084455 Permutation of Z, obtained by reflecting the juggling sequence A084452 from positive to negative numbers (with zero thrown at beat 0), folded to N with functions N2Z and Z2N.
%C A084455 This permutation consists of three infinite cycles + infinite number of fixed points.
%H A084455 A. Karttunen, <a href="/A084507/a084507.scm.txt">Scheme-program for computing this sequence</a>
%H A084455 <a href="/index/Per#IntegerPermutation">Index entries for sequences that are permutations of the natural numbers</a>
%p A084455 [seq(Z2N(A084455_Z2Z(N2Z(n))),n=1..45)];
%p A084455 N2Z := n -> ((-1)^n)*floor(n/2);
%p A084455 Z2N := z -> 2*abs(z)+`if`((z < 1),1,0);
%p A084455 A084455_Z2Z := z -> z+`if`((z > 0), A084452(z),`if`((z >= -3),2*(-z), A084452(A084454((-z)-3))));
%Y A084455 Inverse: A084466. Cf. also A084454, A084461, A084491, A084495, A084499, A065166.
%K A084455 nonn
%O A084455 1,2
%A A084455 _Antti Karttunen_, Jun 02 2003