a(n) = Product_{k=1..n} (100 - 10/k).

A216706

a(n) = Product_{k=1..n} (100 - 10/k).

Terms

    a(0) =1a(1) =90a(2) =8550a(3) =826500a(4) =80583750a(5) =7897207500a(6) =776558737500

External references