OFFSET
1,1
COMMENTS
a(36) > 100000. - Hugo Pfoertner, Jun 03 2023
EXAMPLE
a(1) = 4 is in the sequence because 3^3 - 2^4 = 11 is prime.
a(2) = 6 is in the sequence because 3^5 - 2^6 = 179 is prime.
MATHEMATICA
Cases[Range[1, 300], k_ /; PrimeQ[3^(k - 1) - 2^k]]
CROSSREFS
KEYWORD
nonn,hard,more
AUTHOR
Sébastien Tao, May 29 2023
EXTENSIONS
a(16)-a(31) from Michael S. Branicky, May 29 2023
a(32)-a(33) from Hugo Pfoertner, May 29 2023
a(34)-a(35) from Hugo Pfoertner, Jun 02 2023
STATUS
approved