A095150 a(n) = prime(2^(2^n) + 1).

5, 11, 59, 1621, 821647, 104484802069, 870566678511500413589

Offset: 0

Author

Cino Hilliard, Jun 20 2004

Keywords

• nonn
• more

Comments

The k-th prime where k is the n-th Fermat number.

Examples

			a(2) = prime(2^(2^2)+1) = prime(17) = 59.
		

Links

• Andrew Booker, The Nth Prime Page.

Crossrefs

Cf. A000040, A000215, A151800, A095124.

Programs

PARI

f(n) = for(x=1,n,print1(prime(2^2^x+1)","))

Formula

From Amiram Eldar, Jul 11 2024: (Start)

a(n) = A000040(A000215(n)).

a(n) = A151800(A095124(n)). (End)

Extensions

a(5)-a(6) from Amiram Eldar, Jul 11 2024