The number of n-almost primes less than or equal to 9^n, starting with a(0)=1.
A116429
The number of n-almost primes less than or equal to 9^n, starting with a(0)=1.
Terms
- a(0) =1a(1) =4a(2) =26a(3) =181a(4) =1095a(5) =6416a(6) =35285a(7) =187929a(8) =973404a(9) =4934952a(10) =24628655a(11) =121375817a(12) =592337729a(13) =2868086641a(14) =13798982719a(15) =66043675287a(16) =314715355786
External references
- oeis: A116429