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 A107633 #2 Mar 31 2012 10:28:43 %S A107633 2,5,37,401,1321,3121,3137,4297,7537,44809,68141,788369,1688329, %T A107633 65824021,215002409,813847757 %N A107633 Squares of the norms of Gaussian primes from A107632. %Y A107633 Cf. A107632, A107634. %K A107633 nonn %O A107633 1,1 %A A107633 _Sven Simon_, May 18 2005