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.
%I A268824 #5 Feb 17 2016 17:23:45 %S A268824 0,1,3,2,9,5,4,6,13,17,16,18,10,8,15,7,21,25,24,26,34,32,23,31,14,12, %T A268824 27,11,33,29,28,30,37,41,40,42,50,48,39,47,62,60,43,59,49,45,44,46,22, %U A268824 20,51,19,57,53,52,54,61,65,64,66,58,56,63,55,69,73,72,74,82,80,71,79,94,92,75,91,81,77,76,78,118,116,83,115,89,85 %N A268824 Permutation of nonnegative integers: a(0) = 0, a(n) = 1 + A268822(A268718(n)-1). %C A268824 The "third shifted power" of permutation A268718. %H A268824 Antti Karttunen, <a href="/A268824/b268824.txt">Table of n, a(n) for n = 0..8191</a> %H A268824 <a href="/index/Per#IntegerPermutation">Index entries for sequences that are permutations of the natural numbers</a> %F A268824 a(0) = 0, a(n) = 1 + A268822(A268718(n)-1). %F A268824 a(0) = 0, a(1) = 1, for n>1: a(n) = 2 + A268718(-1+A268718(-1+A268718(n))). %o A268824 (Scheme) (define (A268824 n) (if (<= n 1) n (+ 2 (A268718 (+ -1 (A268718 (+ -1 (A268718 n)))))))) %Y A268824 Inverse: A268823. %Y A268824 Cf. A268718, A268822, A268826. %Y A268824 Row 3 of array A268830. %K A268824 nonn %O A268824 0,3 %A A268824 _Antti Karttunen_, Feb 14 2016