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 A103887 #3 Mar 30 2012 17:26:11
%S A103887 1,4,7,2,10,3,13,5,16,19,6,9,8,12,22,25,28,15,18
%N A103887 Position of p(n) in rearrangement of prime numbers A103886.
%t A103887 Table[Position[A103886, Prime[n]], {n, 19}]//Flatten
%Y A103887 Cf. A067889, A103664, A103665, A103886.
%K A103887 nonn
%O A103887 1,2
%A A103887 _Zak Seidov_, Feb 20 2005