a(n) = Sum_{k=1..n} (prime(k) - 1)^n.

A062440

a(n) = Sum_{k=1..n} (prime(k) - 1)^n.

Terms

    a(0) =1a(1) =5a(2) =73a(3) =1569a(4) =108833a(5) =4036801a(6) =314563713a(7) =15846654977

External references