OFFSET
1,2
COMMENTS
a(79) > 10^6 per Grantham and Granville link, Section 6. - Michael S. Branicky, Sep 07 2024
LINKS
Jon Grantham, Table of n, a(n) for n = 1..78
Jon Grantham and Andrew Granville, Fibonacci primes, primes of the form 2^n-k and beyond, arXiv:2307.07894 [math.NT], 2023.
MATHEMATICA
Do[ If[ PrimeQ[ 3*2^n + 5 ], Print[ n ] ], {n, 1, 3000} ]
PROG
(PARI) {for(n=0, 10^6, if(isprime(k=5+3*2^n), print1(n, ", ")))} /* Joerg Arndt, Apr 13 2012 */
CROSSREFS
KEYWORD
nonn
AUTHOR
Robert G. Wilson v, Nov 16 2000
EXTENSIONS
a(54) from Jinyuan Wang, Feb 02 2020
STATUS
approved