Partial products of successive terms of A017113; a(0)=1.

A144828

Partial products of successive terms of A017113; a(0)=1.

Terms

    a(0) =1a(1) =4a(2) =48a(3) =960a(4) =26880a(5) =967680a(6) =42577920a(7) =2214051840a(8) =132843110400

External references