OFFSET
1,1
COMMENTS
Terms greater than 1000 may only be strong pseudoprimes. [Clarified by M. F. Hasler, Sep 16 2013]
No other terms less than 100000. - Robert Price, Mar 22 2012
PROG
(PARI) is(n)=ispseudoprime(17^n-16^n) \\ Charles R Greathouse IV, May 22 2017
KEYWORD
nonn,hard
AUTHOR
Mike Oakes, May 18 2001
STATUS
approved