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 A216571 #12 May 02 2013 13:10:04 %S A216571 4,11,313,4787,10691,12251,14449,35449,36779,44507,51169,56003,148091, %T A216571 193201,202667,387433,616787,692147 %N A216571 Numbers n such that the n-th Lucas number is prime and can be written in the form a^2 + 6*b^2. %H A216571 Blair Kelly, <a href="http://mersennus.net/fibonacci">Factorizations of Fibonacci and Lucas numbers</a> %Y A216571 Cf. A000032, A001606. %K A216571 nonn %O A216571 1,1 %A A216571 _V. Raman_, Sep 08 2012