A062599 - OEIS

%I #27 Jul 04 2021 07:53:47

%S 3,7,547,5419,16301,36433

%N Numbers k such that 33^k - 32^k is prime.

%C Terms greater than 1000 are often only strong pseudoprimes.

%C No other terms less than 100000. - _Robert Price_, Apr 03 2012

%C All terms are prime. - _Robert Price_, Apr 03 2012

%t Select[Range[100000], PrimeQ[33^# - 32^#] &]

%o (PARI) is(n)=ispseudoprime(33^n-32^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 a(5)-a(6) from _Robert Price_ with assistance from Adam Marciniec, Apr 03 2012