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!)
A164989 Numbers n such that n^6 - n^3 + 1 is prime. 11
6, 7, 9, 42, 49, 54, 66, 73, 81, 88, 96, 100, 106, 118, 120, 121, 126, 175, 190, 196, 207, 208, 234, 235, 240, 271, 301, 312, 322, 342, 343, 367, 378, 379, 381, 384, 397, 399, 415, 418, 423, 442, 444, 480, 505, 513, 520, 556, 574, 609, 628, 664, 666, 700, 702 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

G. C. Greubel, Table of n, a(n) for n = 1..10000

MATHEMATICA

Select[Range[10^3], PrimeQ[#^6 - #^3 + 1] &] (* Michael De Vlieger, Dec 02 2017 *)

PROG

(PARI) for(k=1, 300, if(isprime(k^6-k^3+1), print1(k, ", ")))

(MAGMA) [n: n in [0..1000] |IsPrime(n^3*(n^3-1)+1)] // Vincenzo Librandi, Dec 03 2010

CROSSREFS

Cf. A153439, A175170.

Sequence in context: A032456 A228442 A328644 * A286473 A165363 A006364

Adjacent sequences:  A164986 A164987 A164988 * A164990 A164991 A164992

KEYWORD

easy,nonn

AUTHOR

Serge Batalov, Sep 03 2009

EXTENSIONS

More terms from Vincenzo Librandi, Mar 25 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 | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified August 9 12:34 EDT 2022. Contains 356026 sequences. (Running on oeis4.)