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!)
A114269 Numbers k such that k^2 + 6 is prime. 17

%I #12 Mar 16 2017 04:02:54

%S 1,5,11,19,25,31,35,61,65,79,89,91,109,131,145,151,175,185,199,221,

%T 269,329,331,355,401,431,445,481,485,511,515,529,539,569,595,605,611,

%U 649,695,709,731,775,779,859,889,905,929,941,949,955,971,985,991

%N Numbers k such that k^2 + 6 is prime.

%H G. C. Greubel, <a href="/A114269/b114269.txt">Table of n, a(n) for n = 1..1000</a>

%t With[{k=6}, Select[Range[1000], PrimeQ[ #^2+k]&]]

%o (PARI) is(n)=isprime(n^2+6) \\ _Charles R Greathouse IV_, Jan 21 2015

%Y Other sequences of the type "Numbers k such that k^2 + i is prime": A005574 (i=1), A067201 (i=2), A049422 (i=3), A007591 (i=4), A078402 (i=5), A114270 (i=7), A114271 (i=8), A114272 (i=9), A114273 (i=10), A114274 (i=11), A114275 (i=12).

%K nonn

%O 1,2

%A _Zak Seidov_, Nov 19 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 23 12:44 EDT 2024. Contains 371913 sequences. (Running on oeis4.)