a(n) is the least prime p that remains prime through n iterations of function f(p)=p^2+4.
A116889
a(n) is the least prime p that remains prime through n iterations of function f(p)=p^2+4.
Terms
- a(0) =2a(1) =3a(2) =3a(3) =5087a(4) =306167
External references
- oeis: A116889