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%I #15 Sep 08 2022 08:46:10
%S 0,12,28,53,65,504,1967,6915
%N Numbers n such that 75^n+2 is prime.
%C Dedicated to N. J. A. Sloane for his 75th birthday!
%C Next term, if it exists, is greater than 10000.
%t Select[Range[0, 1000], PrimeQ[75^# + 2] &]
%o (Magma) [n: n in [0..200] | IsPrime(75^n+2)]; // _Vincenzo Librandi_, Oct 08 2014
%o (PARI) is(n)=ispseudoprime(75^n+2) \\ _Charles R Greathouse IV_, Jun 13 2017
%Y Cf. A051783, A087885, A090649, A109076, A138048, A113480, A138049, A138050.
%K nonn,more
%O 1,2
%A _Vaclav Kotesovec_, Oct 08 2014
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