a(n) = Sum_{k = 1..10^n} number of primes (counted with multiplicity) dividing k (A001222).
A071811
a(n) = Sum_{k = 1..10^n} number of primes (counted with multiplicity) dividing k (A001222).
Terms
- a(0) =0a(1) =15a(2) =239a(3) =2877a(4) =31985a(5) =343614a(6) =3626619a(7) =37861249a(8) =392351272a(9) =4044220058a(10) =41518796555a(11) =424904645958
External references
- oeis: A071811