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%I #21 Jul 04 2021 07:53:43
%S 2,23,211,797,1181
%N Numbers k such that 34^k - 33^k is prime.
%C Terms greater than 1000 are often only strong pseudoprimes.
%C No other terms less than 100000. - _Robert Price_, Apr 30 2012
%o (PARI) is(n)=ispseudoprime(34^n-33^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
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