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 A156323 #10 Nov 21 2013 12:49:33
%S A156323 5,17,7,19,11,23,17,29,19,31,29,41,31,43,41,53,47,59,59,71,61,73,67,
%T A156323 79,71,83,89,101,97,109,101,113,127,139,137,149,139,151,151,163,167,
%U A156323 179,179,191,181,193,199,211,211,223,227,239,229,241,239,251,251,263,257
%N A156323 List of prime pairs of the form (p, p+12).
%H A156323 Vincenzo Librandi, <a href="/A156323/b156323.txt">Table of n, a(n) for n = 1..1000</a>
%e A156323 For p=5, 5+12=17, (5,17); p=59, 59+12=71, (59,71)
%t A156323 Flatten[Select[{#,#+12}&/@Prime[Range[100]], PrimeQ[Last[#]]&]] (* _Harvey P. Dale_, Mar 23 2011 *)
%Y A156323 Cf. A046133, A092216.
%K A156323 nonn,tabf
%O A156323 1,1
%A A156323 _Vincenzo Librandi_, Feb 08 2009