OFFSET
1,1
COMMENTS
Terms greater than 1000 are often only strong pseudoprimes.
No other terms less than 100000. - Robert Price, Apr 03 2012
All terms are prime. - Robert Price, Apr 03 2012
MATHEMATICA
Select[Range[100000], PrimeQ[33^# - 32^#] &]
PROG
(PARI) is(n)=ispseudoprime(33^n-32^n) \\ Charles R Greathouse IV, Jun 13 2017
CROSSREFS
KEYWORD
nonn,hard
AUTHOR
Mike Oakes, May 18 2001, May 19 2001
EXTENSIONS
a(5)-a(6) from Robert Price with assistance from Adam Marciniec, Apr 03 2012
STATUS
approved