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!)
A111312 Numbers n such that 11*n + 2 is prime. 1

%I #22 Sep 08 2022 08:45:21

%S 0,1,7,9,15,19,21,25,37,39,49,51,55,61,67,69,75,85,97,99,109,111,117,

%T 127,135,139,141,145,147,151,169,177,181,189,201,217,219,225,229,231,

%U 237,247,249,259,265,267,277,285,289,291,301,315,319,321,331,337,345

%N Numbers n such that 11*n + 2 is prime.

%H Daniel Starodubtsev, <a href="/A111312/b111312.txt">Table of n, a(n) for n = 1..10000</a>

%e If n=135 then 11*n + 2 = 1487 (prime).

%t Select[Range[0,400],PrimeQ[11#+2]&] (* _Harvey P. Dale_, Mar 22 2020 *)

%o (Magma) [n: n in [0..100000] |IsPrime(11*n + 2)] // _Vincenzo Librandi_, Nov 13 2010

%o (PARI) is(n)=isprime(11*n+2) \\ _Charles R Greathouse IV_, Jun 13 2017

%Y Cf. A017413, A090187.

%K nonn,easy

%O 1,3

%A _Parthasarathy Nambi_, Nov 03 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 March 29 04:23 EDT 2024. Contains 371264 sequences. (Running on oeis4.)