

A247958


Numbers n such that 35^n + 2 is prime.


2



0, 1, 15, 83, 1457, 3959, 5351, 5355, 41359, 50327, 54435
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OFFSET

1,3


COMMENTS

After 0, all terms are odd.  Bruno Berselli, Oct 01 2014
a(12) > 2*10^5.  Robert Price, Mar 21 2015


LINKS

Table of n, a(n) for n=1..11.
Henri & Renaud Lifchitz, PRP Top Records, Search for 35^n+2.


MAPLE

A247958:=n>`if`(isprime(35^n+2), n, NULL): seq(A247958(n), n=0..1000); # Wesley Ivan Hurt, Sep 30 2014


MATHEMATICA

Select[Range[0, 10000], PrimeQ[35^# + 2] &]


PROG

(MAGMA) [n: n in [0..1000] IsPrime(35^n+2)];
(PARI) is(n)=ispseudoprime(35^n+2) \\ Charles R Greathouse IV, Jun 13 2017


CROSSREFS

Cf. similar sequences listed in A247957.
Sequence in context: A279395 A270768 A252935 * A108674 A050405 A241220
Adjacent sequences: A247955 A247956 A247957 * A247959 A247960 A247961


KEYWORD

nonn,more


AUTHOR

Vincenzo Librandi, Sep 28 2014


EXTENSIONS

a(9)a(11) from Robert Price, Mar 21 2015


STATUS

approved



