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 A145753 #2 Mar 30 2012 16:51:01 %S A145753 1,315,1232,3780,1344,5040,5760,0,0,0,0,0,0,0,2688 %N A145753 a(n) = number of elements of order n in simple group Alt(8) of order 20160. %Y A145753 A row of A057740. Cf. A031963. %K A145753 nonn,fini,full %O A145753 1,2 %A A145753 _N. J. A. Sloane_, Apr 06 2009