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 A167369 #2 Mar 31 2012 12:38:27 %S A167369 1,5,47450,1333735856351858432985890996140258 %N A167369 sigma(n!,n!). %t A167369 Array[DivisorSigma[ #!,#! ]&,5,1] %Y A167369 Cf. A062569, A167367, A167368 %K A167369 nonn %O A167369 1,2 %A A167369 _Vladimir Joseph Stephan Orlovsky_, Nov 01 2009