Integer lengths of the n-th Copeland-Erdős prime (concatenation of the first n entries (digits) of A033308 is prime).
A227530
Integer lengths of the n-th Copeland-Erdős prime (concatenation of the first n entries (digits) of A033308 is prime).
Terms
- a(0) =1a(1) =2a(2) =4a(3) =11a(4) =353a(5) =355a(6) =499a(7) =1171a(8) =1543a(9) =5719a(10) =11048a(11) =68433a(12) =97855a(13) =292447
External references
- oeis: A227530