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!)
A040079 Primes p such that x^3 = 17 has no solution mod p. 2
7, 13, 19, 31, 37, 43, 61, 67, 97, 103, 127, 139, 151, 157, 181, 193, 211, 271, 277, 283, 313, 331, 367, 379, 409, 421, 433, 439, 463, 487, 499, 547, 571, 577, 601, 607, 613, 631, 643, 661, 673, 691, 709, 727 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Complement of A040078 relative to A000040. - Vincenzo Librandi, Sep 17 2012

LINKS

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

MATHEMATICA

ok[p_]:= Reduce[Mod[x^3 - 17, p] == 0, x, Integers] == False; Select[Prime[Range[200]], ok] (* Vincenzo Librandi, Sep 17 2012  *)

PROG

(MAGMA) [p: p in PrimesUpTo(1000) | not exists{x : x in ResidueClassRing(p) | x^3 eq 17} ]; // Vincenzo Librandi, Sep 17 2012

CROSSREFS

Sequence in context: A272409 A272406 A272384 * A038160 A106870 A040038

Adjacent sequences:  A040076 A040077 A040078 * A040080 A040081 A040082

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane.

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 21 07:28 EDT 2021. Contains 347596 sequences. (Running on oeis4.)