Number of prime powers p^k (k >= 0) (A000961) <= 10^n.
A238815
Number of prime powers p^k (k >= 0) (A000961) <= 10^n.
Terms
- a(0) =1a(1) =8a(2) =36a(3) =194a(4) =1281a(5) =9701a(6) =78735a(7) =665135a(8) =5762860a(9) =50851224a(10) =455062596a(11) =4118082970a(12) =37607992089a(13) =346065767407
External references
- oeis: A238815