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A248547
Numbers n such that 75^n+2 is prime.
0
0, 12, 28, 53, 65, 504, 1967, 6915
OFFSET
1,2
COMMENTS
Dedicated to N. J. A. Sloane for his 75th birthday!
Next term, if it exists, is greater than 10000.
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
KEYWORD
nonn,more
AUTHOR
Vaclav Kotesovec, Oct 08 2014
STATUS
approved