OFFSET
1,1
COMMENTS
Terms greater than 1000 are often only strong pseudoprimes.
All terms are prime. - Robert Price, Aug 09 2013
a(8) > 10^5. - Robert Price, Aug 09 2013
PROG
(PARI) is(n)=ispseudoprime(65^n-64^n) \\ Charles R Greathouse IV, Jun 13 2017
CROSSREFS
KEYWORD
nonn,hard,more
AUTHOR
Mike Oakes, May 18 2001, May 19 2001
EXTENSIONS
a(4)-a(7) (calculations by Adam Marciniec) - Robert Price, Aug 09 2013
STATUS
approved