a(n) = number of primes that end in 9 among the first 10^n primes.
A300400
a(n) = number of primes that end in 9 among the first 10^n primes.
Terms
- a(0) =2a(1) =24a(2) =246a(3) =2491a(4) =25009a(5) =249940a(6) =2499751a(7) =25000026a(8) =249997694a(9) =2499999305a(10) =24999974939a(11) =249999962302
External references
- oeis: A300400