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%I #27 Jul 04 2021 08:43:12
%S 2,43,211,1523,1579,1693,12281,24889
%N Numbers k such that 16^k - 15^k is prime.
%C Terms greater than 1000 may correspond to (unproven) strong pseudoprimes.
%C No other terms less than 100000. - _Robert Price_, Apr 15 2012
%H Henri Lifchitz and Renaud Lifchitz, <a href="http://www.primenumbers.net/prptop/searchform.php?form=16%5Ep-15%5Ep">Top probable primes of the form 16^p-15^p</a>
%o (PARI) is(n)=ispseudoprime(16^n-15^n) \\ _Charles R Greathouse IV_, Jun 12 2017
%Y Cf. A000043, A057468, A059801, A059802, A062572-A062666.
%K nonn,hard,more
%O 1,1
%A _Mike Oakes_, May 18 2001, May 19 2001
%E a(7) (found by _Mike Oakes_ in August 2003) and a(8) (found by Jean-Louis Charton in December 2010) from _Jean-Louis Charton_, Mar 19 2011
%E Edited by _M. F. Hasler_, Sep 16 2013
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