a(n) = product of first n terms of A001359.

A097489

a(n) = product of first n terms of A001359.

Terms

    a(0) =3a(1) =15a(2) =165a(3) =2805a(4) =81345a(5) =3335145a(6) =196773555a(7) =13970922405

External references