a(n) is the smallest prime p such that Sum_{primes q <= p} 1/q >= n/2.

A103592

a(n) is the smallest prime p such that Sum_{primes q <= p} 1/q >= n/2.

Terms

    a(0) =2a(1) =5a(2) =29a(3) =277a(4) =11789a(5) =5195977a(6) =118185163069

External references