a(n) = prime(n) * (prime(n) - 1)^(prime(n) - 1).

A081701

a(n) = prime(n) * (prime(n) - 1)^(prime(n) - 1).

Terms

    a(0) =2a(1) =12a(2) =1280a(3) =326592a(4) =110000000000

External references