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 A196070 #11 Mar 30 2012 18:52:46 %S A196070 2,3,491,525773 %N A196070 Primes of the form 3^n - 2^n + n + n^2 - n^3. %C A196070 Generated by n = 1, 2, 6, 12, 2682,... %C A196070 The fifth term (not shown) has 1280 digits. - R. J. Mathar, Sep 27 2011 %Y A196070 Cf. A195813. %K A196070 nonn %O A196070 1,1 %A A196070 _Juri-Stepan Gerasimov_, Sep 27 2011