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 A072619 #8 May 01 2014 02:47:42 %S A072619 0,1,2,3,4,5,10,7,8,9,6,11,12,13,14,28,15,33,37,19,24,21,22,23,30,25, %T A072619 26,27,16,18,20,31,38,17,34,35,36,29,32,39,40,41,42,84,43,98,112,44, %U A072619 46,45,103,107,85,117,121,126,56,70,89,75,79,61,66,63,64,65,72,67,68,69 %N A072619 Permutation of natural numbers obtained from the permutation A072088 (zero-based). %C A072619 See the comment at A072088. %H A072619 A. Karttunen, <a href="/A072619/b072619.txt">Table of n, a(n) for n = 0..1429</a> %H A072619 A. Karttunen, <a href="http://www.iki.fi/~kartturi/matikka/Nekomorphisms/gatomorf.htm">Gatomorphisms</a> (Includes the complete Scheme program for computing this sequence) %H A072619 <a href="/index/Per#IntegerPermutation">Index entries for sequences that are permutations of the natural numbers</a> %Y A072619 Compare to the plot of A038776. %Y A072619 A072619(n) = A072621(n+1)-1. Inverse permutation: A072620. Cf. also A072088, A038776. %K A072619 nonn,look %O A072619 0,3 %A A072619 _Antti Karttunen_, Jun 25 2002