Number of numbers less than prime(1)*...*prime(n) having exactly one prime factor among (prime(1),...,prime(n)) where prime(n) is the n-th prime.
A078456
Number of numbers less than prime(1)*...*prime(n) having exactly one prime factor among (prime(1),...,prime(n)) where prime(n) is the n-th prime.
Terms
- a(0) =1a(1) =3a(2) =14a(3) =92a(4) =968a(5) =12096a(6) =199296a(7) =3679488a(8) =82607616a(9) =2349508608a(10) =71507128320
External references
- oeis: A078456