(1/p)*(1+A000254(p)-p) as p runs through the primes.

A091826

(1/p)*(1+A000254(p)-p) as p runs through the primes.

Terms

    a(0) =1a(1) =3a(2) =54a(3) =1866a(4) =10958530a(5) =1523289156

External references