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 A125719 #4 Mar 30 2012 17:21:02 %S A125719 1,7,5,16,14,9,12,20,15,18,31,13,21,21,29,11,24,19,27,27,27,27,22,22, %T A125719 30,25,30,38,25,12,46,20,28,33,15,15,28,23,23,23,23,18,44,31,18,31,31, %U A125719 44,13,26,26,26,21,39,34,34,21,34,16,34,34,29,29,29,29,29,24,37,37,24,24,24,37 %N A125719 A127885(prime(n)). %Y A125719 Cf. A127885, A070975. %K A125719 nonn %O A125719 1,2 %A A125719 _David Applegate_ and _N. J. A. Sloane_, Feb 06 2007