OFFSET
1,2
COMMENTS
The next terms are > 6000.
a(34) > 2*10^5. - Robert Price, Mar 16 2014
All terms are verified primes (i.e., not probable primes). - Robert Price, Mar 16 2014
MATHEMATICA
Select[Range[4000], PrimeQ[14 3^# + 1] &]
PROG
(Magma) [n: n in [0..4000] | IsPrime(14*3^n+1)];
(PARI) is(n)=ispseudoprime(14*3^n+1) \\ Charles R Greathouse IV, Jun 13 2017
CROSSREFS
KEYWORD
nonn
AUTHOR
Vincenzo Librandi, Sep 26 2012
EXTENSIONS
a(28)-a(33) from Robert Price, Mar 16 2014
STATUS
approved