Number of numbers <= 10^n that are products of two distinct primes.
A036351
Number of numbers <= 10^n that are products of two distinct primes.
Terms
- a(0) =2a(1) =30a(2) =288a(3) =2600a(4) =23313a(5) =209867a(6) =1903878a(7) =17426029a(8) =160785135a(9) =1493766851a(10) =13959963049a(11) =131125938680
External references
- oeis: A036351