8947437domain: NAppears in sequencesSmallest number m such that Sum_{k=1..m} 1/prime(k) >= n/5.at n=15A103597a(n) is the denominator of (120*n^2 + 151*n + 47)/(512*n^4 + 1024*n^3 + 712*n^2 + 194*n + 15).at n=11A374581