E.g.f: exp(2*x + 5*x^2/2).

Terms

a(0) =1a(1) =2a(2) =9a(3) =38a(4) =211a(5) =1182a(6) =7639a(7) =50738a(8) =368841a(9) =2767202a(10) =22132249a(11) =182624598a(12) =1582522891a(13) =14122521662a(14) =131109031239