login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A174343 Primes p such that p^3+p^2+15*p+18 is also prime. 1
13, 19, 73, 79, 103, 109, 193, 283, 313, 349, 499, 523, 823, 829, 1069, 1459, 1483, 1579, 2029, 2053, 2389, 2503, 2593, 2713, 2803, 2833, 3463, 3583, 3643, 3733, 4099, 4339, 4423, 4483, 4549, 4759, 4933, 5113, 5179, 5413, 5683, 5779, 6379, 6529, 6673 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 1..1000

EXAMPLE

For p=13, 13^3+13^2+15*13+18=2579; p=19, 19^3+19^2+15*19+18=7523.

MATHEMATICA

Select[Prime[Range[1000]], PrimeQ[#^3 +  #^2 + 15 # + 18]&] (* Vincenzo Librandi, Apr 16 2013 *)

PROG

(MAGMA) [p: p in PrimesUpTo(10000) | IsPrime(p^3+p^2+15*p+18)];

CROSSREFS

Subsequence of A002476.

Sequence in context: A291862 A217065 A339917 * A158332 A241486 A180531

Adjacent sequences:  A174340 A174341 A174342 * A174344 A174345 A174346

KEYWORD

nonn,easy

AUTHOR

Vincenzo Librandi, Mar 16 2010

STATUS

approved

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

License Agreements, Terms of Use, Privacy Policy. .

Last modified September 23 20:42 EDT 2021. Contains 347617 sequences. (Running on oeis4.)