Number of 8-almost primes less than or equal to 10^n.
A120049
Number of 8-almost primes less than or equal to 10^n.
Terms
- a(0) =0a(1) =0a(2) =0a(3) =7a(4) =105a(5) =1418a(6) =17572a(7) =207207a(8) =2367507a(9) =26483012a(10) =291646797a(11) =3173159326a(12) =34192782745a(13) =365561221293
External references
- oeis: A120049