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A104046 Primes of the form 5^n+13+1. 1

%I #7 Sep 08 2022 08:45:17

%S 19,139,78139,48828139,298023223876953139,

%T 11102230246251565404236316680908203139,

%U 6462348535570528709932880406796584793482907116413116455078139

%N Primes of the form 5^n+13+1.

%C The sequence of corresponding n starts 1, 2, 3, 5, 6, 9, 10, 25, 98, 122, 153, 190, 258, 511, 549, 1703, 1790, 1870, 2418, ... [_Joerg Arndt_, Jul 19 2012].

%H Vincenzo Librandi, <a href="/A104046/b104046.txt">Table of n, a(n) for n = 1..13</a>

%t Select[Table[5^n+14,{n,0,200}],PrimeQ] (* _Vincenzo Librandi_, Jul 19 2012 *)

%o (Magma) [ a: n in [0..100] | IsPrime(a) where a is 5^n+14 ]; // _Vincenzo Librandi_, Jul 19 2012

%K nonn

%O 1,1

%A _Roger L. Bagula_, Mar 01 2005

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Last modified April 16 01:01 EDT 2024. Contains 371696 sequences. (Running on oeis4.)