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A141802 Numbers n such that 2*29^n + 1 is prime. 2

%I #8 Dec 14 2023 09:53:19

%S 0,1,3,5,7,23,177,327,875,6645,26605

%N Numbers n such that 2*29^n + 1 is prime.

%C Primes found and proved by PrimeForm. No more terms up to 20000.

%o (PARI) is(n)=ispseudoprime(2*29^n+1) \\ _Charles R Greathouse IV_, Jun 06 2017

%Y Cf. A141798.

%K nonn,more,hard

%O 1,3

%A _Rick L. Shepherd_, Jul 08 2008

%E a(11) from _Michael S. Branicky_, Dec 14 2023

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Last modified April 16 19:48 EDT 2024. Contains 371754 sequences. (Running on oeis4.)