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 A061122 #4 May 10 2013 12:44:45 %S A061122 0,0,0,0,0,0,0,5040,45360,453600,3326400,39916800,363242880, %T A061122 3874590720,34767532800,567177811200,6897521030400,98241008785920, %U A061122 1138935652807680,18952720774041600,258251731634534400 %N A061122 Number of degree-n permutations of order exactly 8. %F A061122 E.g.f.: -exp(x+1/2*x^2+1/4*x^4)+exp(x+1/2*x^2+1/4*x^4+1/8*x^8). %Y A061122 Cf. A000085, A001470, A001472, A052501, A053496-A053505, A001189, A001471, A001473, A061121-A061128. %K A061122 easy,nonn %O A061122 1,8 %A A061122 _Vladeta Jovovic_, Apr 14 2001