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 A199322 #14 Aug 03 2014 14:01:35
%S A199322 1,1,2,0,1,1,1,1,2,0,2,1,2,1,2,1,1,1,0,2,1,1,1,3,1,0,1,3,1,0,3,2,1,1,
%T A199322 4,0,2,2,2,2,2,2,2,2,5,1,3,1,0,2,4,2,0,2,2,3,4,3,3,2,2,4,4,5,1,4,2,3,
%U A199322 2,3,1,1,5,3,2,2,2,3,2,2,6,4,1,2,3,4
%N A199322 Number of twin prime numbers of the form n*(n+1) + 2*k-3 and n*(n+1) + 2*k-1 with k = 1 to n+1.
%C A199322 0.66*n/log(n)^2 is a good approximation for a(n) as n increases
%H A199322 Pierre CAMI, <a href="/A199322/b199322.txt">Table of n, a(n) for n = 1..10000</a>
%t A199322 Table[m = n*(n+1); Length[Select[Range[n+1], PrimeQ[m + 2*#-3] && PrimeQ[m + 2*#-1] &]], {n, 100}] (* _T. D. Noe_, Nov 07 2011 *)
%Y A199322 Cf. A199323, A199324.
%K A199322 nonn
%O A199322 1,3
%A A199322 _Pierre CAMI_, Nov 07 2011