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 A107834 #2 Mar 30 2012 17:26:16 %S A107834 14,2,6,5,7,4,12,9,1,10,8,11,13,15,19,18,20,21,16,3,17,22,24,23,27,26, %T A107834 28,25,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49, %U A107834 50,51,52,53,54,55,56,57,58,59,60,61 %N A107834 Indices of primes occurring in A107814. %F A107834 A107834(n)=pi(A107814(n)) %Y A107834 Cf. A107801 - A107814, A107821 - A107833. %K A107834 easy,nonn %O A107834 1,1 %A A107834 _Zak Seidov_, May 24 2005