A062665 - OEIS

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A062665

Numbers k such that 99^k - 98^k is prime.

%I #23 Jul 04 2021 09:13:53

%S 2,709

%N Numbers k such that 99^k - 98^k is prime.

%C a(3) > 20000. - _Derek Orr_, Sep 03 2014

%C Terms must be prime. - _Derek Orr_, Sep 03 2014

%C a(3) > 10^5. - _Robert Price_, Mar 22 2015

%o (PARI) is(n)=ispseudoprime(99^n-98^n) \\ _Charles R Greathouse IV_, Sep 04 2014

%Y Cf. A000043, A057468, A059801, A059802, A062572-A062666.

%K nonn,hard,bref

%O 1,1

%A _Mike Oakes_, May 18 2001, May 19 2001