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!)
A102768 Numbers k such that 23*k + 11 is prime. 1

%I #28 Sep 27 2022 07:54:31

%S 0,4,6,10,16,24,30,36,42,46,64,70,72,76,90,100,102,114,126,130,144,

%T 150,160,172,174,184,186,196,202,204,214,226,232,234,240,244,246,252,

%U 262,270,276,280,300,312,322,342,360,366,370,402,406,414,430,436,442,444

%N Numbers k such that 23*k + 11 is prime.

%H Daniel Starodubtsev, <a href="/A102768/b102768.txt">Table of n, a(n) for n = 1..10001</a> [Offset shifted by _Georg Fischer_, Sep 27 2022]

%e 4 is a term because 23*4 + 11 = 103 (prime).

%e 64 is a term because 23*64 + 11 = 1483 (prime).

%e 140 is a term because 23*130 + 11 = 3001 (prime).

%p A102768:=n->`if`(isprime(23*n+11), n, NULL); seq(A102768(n), n=0..500); # _Wesley Ivan Hurt_, Feb 28 2014

%o (Magma) [n: n in [0..1000] | IsPrime(23*n + 11)] // _Vincenzo Librandi_, Nov 17 2010

%o (PARI) select(n->isprime(23*n + 11), vector(1000,j,j-1) ) \\ _Joerg Arndt_, Mar 01 2014

%K nonn

%O 1,2

%A _Parthasarathy Nambi_, Feb 10 2005

%E Offset changed to 1 by _Georg Fischer_, Sep 27 2022

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 25 05:18 EDT 2024. Contains 371964 sequences. (Running on oeis4.)