login
This site is supported by donations to The OEIS Foundation.

 

Logo

Annual Appeal: Please make a donation (tax deductible in USA) to keep the OEIS running. Over 5000 articles have referenced us, often saying "we discovered this result with the help of the OEIS".

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A040095 Primes p such that x^3 = 23 has a solution mod p. 2
2, 3, 5, 11, 17, 23, 29, 31, 37, 41, 47, 53, 59, 61, 71, 83, 89, 101, 103, 107, 109, 113, 131, 137, 139, 149, 157, 163, 167, 173, 179, 191, 193, 197, 211, 227, 233, 239, 241, 251, 257, 263, 269, 271, 281, 293, 311 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Complement of A040096 relative to A000040. - Vincenzo Librandi, Sep 13 2012

LINKS

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

MATHEMATICA

ok [p_]:=Reduce[Mod[x^3 - 23, p] == 0, x, Integers] =!= False;  Select[Prime[Range[180]], ok] (* Vincenzo Librandi, Sep 11 2012 *)

PROG

(MAGMA) [p: p in PrimesUpTo(450) | exists(t){x : x in ResidueClassRing(p) | x^3 eq 23}]; // Vincenzo Librandi, Sep 11 2012

CROSSREFS

Cf. A000040, A040096.

Sequence in context: A274386 A079545 A154755 * A040028 A049589 A049583

Adjacent sequences:  A040092 A040093 A040094 * A040096 A040097 A040098

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 | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy .

Last modified December 5 15:24 EST 2016. Contains 278770 sequences.