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 A237055 #8 Feb 09 2014 19:55:33
%S A237055 3,7,5,11,13,17,23,31,19,41,37,29,47,43,53,71,67,61,59,73,89,83,103,
%T A237055 79,101,97,109,107,139,113,131,127,157,173,163,151,137,181,149,191,
%U A237055 199,167,197,193,179,239,223,211,233,283,229,227,241,251,257,271,269
%N A237055 Least prime p not already included in the sequence such that p + 2n is a prime.
%C A237055 Includes only odd numbers. The sequence includes all prime numbers since, for any prime, another prime exists differing by an even number.
%p A237055 a(7)=23 since 23+2*7 = 23+14 = 37 is prime.
%t A237055 t = {}; Do[p = 3; While[! (PrimeQ[p + 2 n] && ! MemberQ[t, p]), p = NextPrime[p]]; AppendTo[t, p], {n, 100}]; t (* _T. D. Noe_, Feb 04 2014 *)
%K A237055 nonn
%O A237055 1,1
%A A237055 _Carmine Suriano_, Feb 03 2014