The number of n-almost primes less than or equal to 6^n, starting with a(0)=1.
A116427
The number of n-almost primes less than or equal to 6^n, starting with a(0)=1.
Terms
- a(0) =1a(1) =3a(2) =13a(3) =50a(4) =200a(5) =726a(6) =2613a(7) =9061a(8) =30779a(9) =102637a(10) =338230a(11) =1102674a(12) =3566001a(13) =11455355a(14) =36597558a(15) =116395587a(16) =368749900a(17) =1164407829a(18) =3666312894a(19) =11515047829a(20) =36085395700a(21) =112857846859a(22) =352329509934
External references
- oeis: A116427