Numbers n such that 4(10^n-1)/9 * 10^ceiling(log_10(n+1)) + n is prime.
A176089
Numbers n such that 4(10^n-1)/9 * 10^ceiling(log_10(n+1)) + n is prime.
Terms
- a(0) =1a(1) =547a(2) =1187a(3) =11183
External references
- oeis: A176089
A176089
Numbers n such that 4(10^n-1)/9 * 10^ceiling(log_10(n+1)) + n is prime.