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 A242917 #9 Jun 05 2014 01:46:51 %S A242917 7,16,20,28,30,34,35,40,49,69,74,84,89,101,105,108,133,134,142,148, %T A242917 154,159,169,176,182,185,194,202,213,215,220,221,225,232,235,238,251, %U A242917 256,261,303,310,311,314,322,323,329,330,342,343,353,354,360,382,396,398 %N A242917 Positions of smaller of twin primes in A001359 with index 4. %C A242917 For the definition of the index of a twin prime pair, see the comment in A242767. %H A242917 Peter J. C. Moses, <a href="/A242917/b242917.txt">Table of n, a(n) for n = 1..5000</a> %t A242917 A242767=Join[{1},Differences[Flatten[Position[Differences[Prime[Range[10^4]]],2]]]]; %t A242917 A242917=Flatten[Position[A242767,4]] (* _Peter J. C. Moses_, May 27 2014 *) %Y A242917 Cf. A001359, A242758, A242767, A242768, A242807, A242881, A242913. %K A242917 nonn %O A242917 1,1 %A A242917 _Vladimir Shevelev_, May 26 2014 %E A242917 More terms from _Peter J. C. Moses_, May 26 2014