a(n) is the least k such that k^j+2 is prime for j = 1 to n but not n+1.
A359396
a(n) is the least k such that k^j+2 is prime for j = 1 to n but not n+1.
Terms
- a(0) =5a(1) =9a(2) =105a(3) =3a(4) =909a(5) =4995825a(6) =28212939
External references
- oeis: A359396