login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A111369 Numbers k such that 13*k + 11 is prime. 2

%I #21 Sep 08 2022 08:45:21

%S 0,2,6,12,14,20,26,30,36,42,50,56,72,80,84,86,90,96,114,120,122,134,

%T 140,152,156,164,170,174,180,182,204,206,210,212,216,222,230,236,246,

%U 254,260,266,272,282,294,300,306,314,332,342,344,350,356,360,380,384,390

%N Numbers k such that 13*k + 11 is prime.

%H Daniel Starodubtsev, <a href="/A111369/b111369.txt">Table of n, a(n) for n = 1..10000</a>

%e k=156 is a term because 13*k + 11 = 2039 is prime.

%t Select[Range[0,400,2],PrimeQ[13#+11]&] (* _Harvey P. Dale_, Jun 17 2020 *)

%o (Magma) [n: n in [0..100000] |IsPrime(13*n+11)] // _Vincenzo Librandi_, Nov 13 2010

%o (PARI) is(n)=isprime(13*n+11) \\ _Charles R Greathouse IV_, Jun 12 2017

%Y Cf. A102721, A269100.

%K nonn,easy

%O 1,2

%A _Parthasarathy Nambi_, Nov 08 2005

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 24 20:08 EDT 2024. Contains 371963 sequences. (Running on oeis4.)