a(n) = v(n)/A000178(n), v = A203470, A000178 = (superfactorials).

A203471

a(n) = v(n)/A000178(n), v = A203470, A000178 = (superfactorials).

Terms

    a(0) =1a(1) =5a(2) =105a(3) =8820a(4) =2910600a(5) =3745942200

External references