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 A129119 #9 Sep 27 2019 12:26:34
%S A129119 6,10,14,26,34,74,94,134,146,194,206,274,326,334,386,466,554,586,614,
%T A129119 626,634,694,746,926,974,1006,1094,1154,1186,1214,1226,1354,1486,1574,
%U A129119 1646,1654,1706,1766,1906,1934,1966,1994,2174,2234,2246,2474,2734,2846
%N A129119 Numbers of the form 2*p (with p a prime number) such that p^2+4 is prime.
%F A129119 a(n) = 2*A062324(n).
%e A129119 7^2 + 4 = 53 which is a prime number. Therefore 2*7 is in the sequence.
%t A129119 2*Select[Prime@Range[250], PrimeQ[ #^2 + 4] &] (* _Ray Chandler_, May 27 2007 *)
%t A129119 a={};For[n=1,n<300,n++,If[PrimeQ[Prime[n]^2 + 4], AppendTo[a, 2*Prime[n]]]]; a (* _Stefan Steinerberger_, May 27 2007 *)
%Y A129119 Cf. A045637, A062324.
%K A129119 easy,nonn
%O A129119 1,1
%A A129119 _Giovanni Teofilatto_, May 25 2007
%E A129119 Extended and edited by _Ray Chandler_ and _Stefan Steinerberger_, May 27 2007