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%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