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%I #18 May 19 2023 20:11:56
%S 2,4,14,23,55,80,104,286,335,383,809,1664,2096,2624,4262,13544,14249,
%T 19886,35500,40591,42920,50839,56696
%N Numbers k such that 2^k - F(k) is prime, where F(n) is the n-th Fibonacci number.
%C 1664 and above are pseudoprimes only. - Sam Handler (sam_5_5_5_0(AT)yahoo.com), Dec 26 2004
%C 1664, 2096, 2624 and 4262 correspond to certified primes. (Primo 2.2.0 beta) - _Ryan Propper_, Aug 29 2005
%t Do[ If[ PrimeQ[ 2^n - Fibonacci[n]], Print[n]], {n, 1, 5000}]
%Y Cf. A000045, A074824.
%K more,nonn
%O 1,1
%A _Benoit Cloitre_, Sep 04 2002
%E Edited by _Robert G. Wilson v_, Sep 06 2002
%E a(16)-a(20) from Sam Handler (sam_5_5_5_0(AT)yahoo.com), Dec 18 2004
%E a(21)-a(23) from _Michael S. Branicky_, May 19 2023
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