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 A242913 #9 Jun 05 2014 01:46:13
%S A242913 5,6,8,17,19,29,38,44,45,46,52,54,55,65,67,71,78,80,87,95,96,97,103,
%T A242913 106,113,119,121,124,135,136,138,152,166,187,188,191,192,208,209,212,
%U A242913 217,237,253,254,259,269,271,275,277,288,300,308,316,320,331,349,355
%N A242913 Positions of smaller of twin primes in A001359 with index 3.
%C A242913 For the definition of the index of a twin prime pair, see the comment in A242767.
%H A242913 Peter J. C. Moses, <a href="/A242913/b242913.txt">Table of n, a(n) for n = 1..5000</a>
%t A242913 A242767=Join[{1},Differences[Flatten[Position[Differences[Prime[Range[10^4]]],2]]]];
%t A242913 A242913=Flatten[Position[A242767,3]] (* _Peter J. C. Moses_, May 27 2014 *)
%Y A242913 Cf. A001359, A242758, A242767, A242768, A242807, A242881.
%K A242913 nonn
%O A242913 1,1
%A A242913 _Vladimir Shevelev_, May 26 2014
%E A242913 More terms from _Peter J. C. Moses_, May 26 2014