OFFSET
1,3
COMMENTS
All terms > 0 are odd. - Robert Israel, Sep 29 2014
a(7) > 2*10^5. - Robert Price, May 08 2015
MATHEMATICA
Select[Range[0, 2000], PrimeQ[41^# + 2] &]
PROG
(Magma) [n: n in [0..600]| IsPrime( 41^n + 2 )];
(PARI) is(n)=ispseudoprime(41^n+2) \\ Charles R Greathouse IV, Jun 13 2017
CROSSREFS
KEYWORD
nonn,more
AUTHOR
Vincenzo Librandi, Sep 29 2014
STATUS
approved