

A248547


Numbers n such that 75^n+2 is prime.


0




OFFSET

1,2


COMMENTS

Dedicated to N. J. A. Sloane for his 75th birthday!
Next term, if it exists, is greater than 10000.


LINKS

Table of n, a(n) for n=1..8.


MATHEMATICA

Select[Range[0, 1000], PrimeQ[75^# + 2] &]


PROG

(MAGMA) [n: n in [0..200]  IsPrime(75^n+2)]; // Vincenzo Librandi, Oct 08 2014
(PARI) is(n)=ispseudoprime(75^n+2) \\ Charles R Greathouse IV, Jun 13 2017


CROSSREFS

Cf. A051783, A087885, A090649, A109076, A138048, A113480, A138049, A138050.
Sequence in context: A107707 A183053 A126195 * A164533 A034319 A097427
Adjacent sequences: A248544 A248545 A248546 * A248548 A248549 A248550


KEYWORD

nonn,more


AUTHOR

Vaclav Kotesovec, Oct 08 2014


STATUS

approved



