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 A216575 #12 May 02 2013 13:12:29 %S A216575 5,13,17,37,41,53,61,113,313,353,613,617,1097,1361,4793,7741,14449, %T A216575 19469,35449,51169,89849,140057,159521,183089,193201,344293,387433, %U A216575 443609,532277,631181,651821 %N A216575 Numbers n such that the n-th Lucas number is prime and can be written in the form a^2 + 10*b^2. %H A216575 Blair Kelly, <a href="http://mersennus.net/fibonacci">Factorizations of Fibonacci and Lucas numbers</a> %Y A216575 Cf. A000032, A001606. %K A216575 nonn %O A216575 1,1 %A A216575 _V. Raman_, Sep 08 2012