Number of primes <= R_n where R_n is 11...111 with n 1's.
A234317
Number of primes <= R_n where R_n is 11...111 with n 1's.
Terms
- a(0) =0a(1) =5a(2) =29a(3) =186a(4) =1345a(5) =10544a(6) =86537a(7) =733409a(8) =6363181a(9) =56196113a(10) =503193256a(11) =4555800188a(12) =41621368073a(13) =383118399785
External references
- oeis: A234317