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 A137860 #2 Mar 30 2012 18:50:59
%S A137860 4,6,10,14,20,18,16,28,28,34,36,40,36,26,42,42,36,48,58,42,42,48,70,
%T A137860 76,66,42,96,64,58,48,56,70,58,78,64,84,64,94,66,56
%N A137860 Largest prime gap between the n-th squared twin prime pair.
%e A137860 a(2) = MAX{31-29, 37-31, 41-37, 43-41, 47-43} = 6.
%Y A137860 Cf. A137859, A079629.
%K A137860 nonn
%O A137860 1,1
%A A137860 _Reinhard Zumkeller_, Feb 16 2008