E.g.f. A(x) satisfies the property that the coefficient of x^n in the n-th iteration of e.g.f. A(x), for n>=1, begins with [1,2] and continues with all zeros thereafter.

A228508

E.g.f. A(x) satisfies the property that the coefficient of x^n in the n-th iteration of e.g.f. A(x), for n>=1, begins with [1,2] and continues with all zeros thereafter.

Terms

    a(0) =1a(1) =2a(2) =-12a(3) =180a(4) =-4080a(5) =113400a(6) =-3281040a(7) =75675600a(8) =-207930240a(9) =-54890589600

External references