Numbers n such that 19^n+4 is prime.
A243397
Numbers n such that 19^n+4 is prime.
Terms
- a(0) =0a(1) =1a(2) =3a(3) =21a(4) =145a(5) =273a(6) =1425a(7) =9613a(8) =15711a(9) =18445
External references
- oeis: A243397
A243397
Numbers n such that 19^n+4 is prime.