Sum of the first 10^n terms in A097974. a(n) = sum_{m=1..10^n} t(m), where t(m) is the sum of the prime divisors of m that are less than or equal to sqrt(m).

A108274

Sum of the first 10^n terms in A097974. a(n) = sum_{m=1..10^n} t(m), where t(m) is the sum of the prime divisors of m that are less than or equal to sqrt(m).

Terms

    a(0) =0a(1) =11a(2) =327a(3) =7714a(4) =184680a(5) =4617253a(6) =118697919a(7) =3149768778a(8) =85356405077

External references