

A098856


Numbers k such that 4^k*(2^k  1) + 1 is a prime.


2




OFFSET

1,2


COMMENTS



LINKS



PROG

(Magma) [k: k in [1..500]  IsPrime(4^k*(2^k1)+1)]; // Jinyuan Wang, Mar 19 2020


CROSSREFS

Cf. A098857 ((4^k)*(2^k  1)  1 is prime).


KEYWORD

nonn,more


AUTHOR



EXTENSIONS

6348, corresponding to a probable prime, from Ryan Propper, Jun 18 2005


STATUS

approved



