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 A195099 #5 Mar 30 2012 18:57:44 %S A195099 1,2,3,4,5,6,7,8,9,10,11,12,13,15,14,16,17,18,20,21,19,22,23,24,26,27, %T A195099 28,25,29,30,31,33,34,35,36,32,37,38,39,41,42,43,45,44,40,46,47,48,50, %U A195099 51,52,54,55,53,49,56,57,58,60,61,62,64,65,66,63,59,67,68,69 %N A195099 Inverse permutation of A195098; every positive integer occurs exactly once. %t A195099 (See A195098.) %Y A195099 Cf. A194098, A195097, A194959. %K A195099 nonn %O A195099 1,2 %A A195099 _Clark Kimberling_, Sep 08 2011