OFFSET
1,2
COMMENTS
a(27) > 21628. - Jinyuan Wang, Dec 14 2019
MATHEMATICA
Do[ If[ PrimeQ[ 3*5^n - 2 ], Print[ n ] ], {n, 1, 1500} ]
PROG
(PARI) is(n)=ispseudoprime(3*5^n-2) \\ Charles R Greathouse IV, Jun 12 2017
CROSSREFS
KEYWORD
nonn,more
AUTHOR
Robert G. Wilson v, Nov 17 2000
EXTENSIONS
a(20)-a(26) from Jinyuan Wang, Dec 14 2019
a(27)-a(31) from Michael S. Branicky, Jul 09 2024
STATUS
approved