a(1) = 2. a(n) = a(n-1)*(largest prime occurring earlier in the sequence) + 1.

A120762

a(1) = 2. a(n) = a(n-1)*(largest prime occurring earlier in the sequence) + 1.

Terms

    a(0) =2a(1) =5a(2) =26a(3) =131a(4) =17162a(5) =2248223

External references