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 A145822 #2 Mar 30 2012 16:51:01 %S A145822 1,18315,142010,457380,809424,2044350,237600,2494800,2217600,498960, %T A145822 3628800,2910600,0,712800,887040,0,0,0,0,997920,1900800 %N A145822 a(n) = number of elements of order n in simple group Alt(11) of order 19958400. %Y A145822 A row of A057740. Cf. A031963. %K A145822 nonn,fini,full %O A145822 1,2 %A A145822 _N. J. A. Sloane_, Apr 06 2009