Integers k such that 7*10^k + 31 is a prime number.
A111021
Integers k such that 7*10^k + 31 is a prime number.
Terms
- a(0) =1a(1) =8a(2) =11a(3) =143a(4) =203a(5) =2727a(6) =2911a(7) =3339a(8) =17039
External references
- oeis: A111021
A111021
Integers k such that 7*10^k + 31 is a prime number.