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 A072622 #5 May 01 2014 02:47:42 %S A072622 1,2,3,4,5,6,11,8,9,10,7,12,13,14,15,17,29,34,30,20,31,22,23,24,21,26, %T A072622 27,28,16,38,25,32,39,18,35,36,37,19,33,40,41,42,43,45,48,50,49,85, %U A072622 113,99,104,100,86,108,88,89,57,71,90,101,91,62,92,64,65,66,63,68,69,70,58 %N A072622 Permutation of natural numbers obtained from the permutation A072089 (one-based). %C A072622 See the comment at A072088. %H A072622 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 A072622 <a href="/index/Per#IntegerPermutation">Index entries for sequences that are permutations of the natural numbers</a> %Y A072622 A072622(n) = A072620(n-1)+1. Inverse permutation: A072621. Cf. also A070041. %K A072622 nonn %O A072622 1,2 %A A072622 _Antti Karttunen_, Jun 25 2002