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%I #7 Jun 13 2017 14:42:11
%S 9,14,32,48,78,85,108,134,834,1701,2275,3103,5795,10307,17243,24045,
%T 31085,32613,40014
%N Numbers n such that 6^n-5^(n+1) is prime.
%C a(20) > 10^5.
%e 9 is a member since 6^9 - 5^10 = 10077696 - 9765625 = 312071 which is a prime number.
%t Select[Range[0, 100000], PrimeQ[6^# - 5^(# + 1)] &]
%o (PARI) is(n)=ispseudoprime(6^n-5^(n+1)) \\ _Charles R Greathouse IV_, Jun 13 2017
%Y Cf. A093713, A082103, A093717, A093793, A096185, A093794, A093795, A096186, A271883, A271884.
%K nonn,more
%O 1,1
%A _Robert Price_, May 06 2016
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