A176926 - OEIS

%I #13 Nov 08 2023 18:16:49

%S 37,41,97,2081,4129,16417,32801,1048609,1073741857,

%T 1152921504606847009,295147905179352825889,37778931862957161709601,

%U 324518553658426726783156020576289,83076749736557242056487941267521569

%N Primes of the form 2^k + 33.

%H Vincenzo Librandi, <a href="/A176926/b176926.txt">Table of n, a(n) for n = 1..25</a>

%F a(n) = 2^A247953(n) + 33. - _Elmo R. Oliveira_, Nov 08 2023

%t Select[Table[2^n + 33, {n, 300}], PrimeQ] (* _Vincenzo Librandi_ Dec 01 2012 *)

%o (Magma) [ a: n in [0..750] | IsPrime(a) where a is 2^n+33 ]

%Y Cf. A000040, A247953 (corresponding k's).

%K nonn

%O 1,1

%A _Vincenzo Librandi_, Apr 29 2010