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 A268828 #5 Feb 17 2016 17:24:24 %S A268828 0,1,3,2,8,6,4,5,20,18,9,17,7,11,10,12,28,26,33,25,31,35,34,36,19,15, %T A268828 14,16,32,30,13,29,44,42,49,41,47,51,50,52,67,63,62,64,48,46,61,45,27, %U A268828 23,22,24,56,54,21,53,68,66,57,65,55,59,58,60,76,74,81,73,79,83,82,84,99,95,94,96,80,78,93,77,123,119,118,120,88,86 %N A268828 Permutation of nonnegative integers: a(0) = 0, a(n) = 1 + A268826(A268718(n)-1). %C A268828 The "fifth shifted power" of permutation A268718. %H A268828 Antti Karttunen, <a href="/A268828/b268828.txt">Table of n, a(n) for n = 0..8191</a> %H A268828 <a href="/index/Per#IntegerPermutation">Index entries for sequences that are permutations of the natural numbers</a> %F A268828 a(0) = 0, and for n >= 1, a(n) = 1 + A268826(A268718(n)-1). %o A268828 (Scheme) (define (A268828 n) (if (zero? n) n (+ 1 (A268826 (+ -1 (A268718 n)))))) %Y A268828 Inverse: A268827. %Y A268828 Cf. A268718, A268826, A268832. %Y A268828 Row 5 of array A268830. %K A268828 nonn %O A268828 0,3 %A A268828 _Antti Karttunen_, Feb 14 2016