This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A074716 #22 Aug 03 2024 07:08:20 %S A074716 2,4,14,23,55,80,104,286,335,383,809,1664,2096,2624,4262,13544,14249, %T A074716 19886,35500,40591,42920,50839,56696,114505 %N A074716 Numbers k such that 2^k - F(k) is prime, where F(n) is the n-th Fibonacci number. %C A074716 1664 and above are pseudoprimes only. - Sam Handler (sam_5_5_5_0(AT)yahoo.com), Dec 26 2004 %C A074716 1664, 2096, 2624 and 4262 correspond to certified primes. (Primo 2.2.0 beta) - _Ryan Propper_, Aug 29 2005 %t A074716 Do[ If[ PrimeQ[ 2^n - Fibonacci[n]], Print[n]], {n, 1, 5000}] %Y A074716 Cf. A000045, A074824. %K A074716 more,nonn %O A074716 1,1 %A A074716 _Benoit Cloitre_, Sep 04 2002 %E A074716 Edited by _Robert G. Wilson v_, Sep 06 2002 %E A074716 a(16)-a(20) from Sam Handler (sam_5_5_5_0(AT)yahoo.com), Dec 18 2004 %E A074716 a(21)-a(23) from _Michael S. Branicky_, May 19 2023 %E A074716 a(24) from _Michael S. Branicky_, Aug 03 2024