Primes of the form A128646(k)-1 for some k (listed in A137689), where A128646 = denominators of partial sums of 1/(prime(i)-1).

A137690

Primes of the form A128646(k)-1 for some k (listed in A137689), where A128646 = denominators of partial sums of 1/(prime(i)-1).

Terms

    a(0) =3a(1) =11a(2) =59a(3) =79a(4) =719a(5) =7919a(6) =55439a(7) =425039a(8) =5525519a(9) =19709529839a(10) =197095298399

External references