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%I #22 Jul 04 2021 07:53:37
%S 3,5,11,157,2557,13537,73477,85243
%N Numbers k such that 35^k - 34^k is prime.
%C Terms greater than 1000 are often only strong pseudoprimes.
%C No other terms less than 100000. - _Robert Price_, May 21 2012
%o (PARI) is(n)=ispseudoprime(35^n-34^n) \\ _Charles R Greathouse IV_, Jun 13 2017
%Y Cf. A000043, A057468, A059801, A059802, A062572-A062666.
%K nonn,hard
%O 1,1
%A _Mike Oakes_, May 18 2001, May 19 2001
%E Added a(6)-a(8) (computer runs by Adam Marciniec) from _Robert Price_, May 21 2012
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