56043187200domain: NAppears in sequencesE.g.f. (1-x^3)/(1-x^2-x^3).at n=13A052607G.f.: Sum_{n>=0} (n+2)^n * x^n / (1 + (n+2)*x)^n.at n=13A229039a(n) = (n - 4)*n! for n>=0.at n=13A282822a(0) = 0; for n>0, a(n) = 9*n!.at n=13A295473