The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A049564

(Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
Showing entries 1-10 | older changes

A049564

Primes p such that x^32 = 2 has a solution mod p.
(history; published version)

#16 by Charles R Greathouse IV at Thu Sep 08 08:44:58 EDT 2022

PROG

(MAGMAMagma) [p: p in PrimesUpTo(1100) | exists(t){x : x in ResidueClassRing(p) | x^32 eq 2}]; // Vincenzo Librandi, Sep 14 2012

Discussion

Thu Sep 08

08:44

OEIS Server: https://oeis.org/edit/global/2944

#15 by Jon E. Schoenfield at Fri Mar 06 23:58:18 EST 2020

STATUS

editing

approved

#14 by Jon E. Schoenfield at Fri Mar 06 23:58:16 EST 2020

AUTHOR

N. J. A. Sloane.

STATUS

approved

editing

#13 by Bruno Berselli at Fri Sep 14 04:10:42 EDT 2012

STATUS

reviewed

approved

#12 by Joerg Arndt at Fri Sep 14 03:21:25 EDT 2012

STATUS

proposed

reviewed

#11 by Vincenzo Librandi at Fri Sep 14 03:19:25 EDT 2012

STATUS

editing

proposed

#10 by Vincenzo Librandi at Fri Sep 14 03:19:12 EDT 2012

COMMENTS

Complement of A059349 relative to A000040. - Vincenzo Librandi, Sep 14 2012

MATHEMATICA

ok[p_]:= Reduce[Mod[x^32 - 2, p] == 0, x, Integers] =!= False; Select[Prime[Range[300]], ok] (* Vincenzo Librandi, Sep 14 2012 *)

PROG

(MAGMA) [p: p in PrimesUpTo(1100) | exists(t){x : x in ResidueClassRing(p) | x^32 eq 2}]; // Vincenzo Librandi, Sep 14 2012

CROSSREFS

Cf. A000040, A059349.

KEYWORD

nonn,easy

STATUS

approved

editing

#9 by Russ Cox at Fri Mar 30 16:48:33 EDT 2012

AUTHOR

_N. J. A. Sloane (njas(AT)research.att.com)_.

Discussion

Fri Mar 30

16:48

OEIS Server: https://oeis.org/edit/global/110

#8 by Russ Cox at Sun Jul 10 18:37:59 EDT 2011

LINKS

<a href="/Sindx_index/Pri.html#smp">Index entries for related sequences</a>

Discussion

Sun Jul 10

18:38

OEIS Server: https://oeis.org/edit/global/72

#7 by N. J. A. Sloane at Thu Nov 11 07:34:06 EST 2010

LINKS

R. J. Mathar, <a href="/A049564/b049564.txt">Table of n, a(n) for n = 1..1000</a>

<a href="/Sindx_Pri.html#smp">Index entries for related sequences</a>

KEYWORD

nonn,new

nonn