Number of cluster primes less than 10^n.
A039506
Number of cluster primes less than 10^n.
Terms
- a(0) =3a(1) =23a(2) =99a(3) =420a(4) =1807a(5) =8287a(6) =40017a(7) =202208a(8) =1059807a(9) =5736717a(10) =31911465a(11) =182019293a(12) =1060723057
External references
- oeis: A039506