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!)
A038984 Primes p such that 94 is not a square mod p. 1
7, 11, 19, 37, 41, 43, 53, 61, 67, 71, 73, 79, 101, 103, 107, 113, 137, 139, 149, 157, 163, 173, 179, 191, 193, 197, 211, 227, 233, 239, 257, 263, 269, 271, 277, 281, 313, 383, 397, 409, 419, 431, 433, 439, 443 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

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

MATHEMATICA

Select[Prime[Range[120]], JacobiSymbol[94, #]==-1 &] (* Vincenzo Librandi, Sep 10 2012 *)

PROG

(MAGMA) [p: p in PrimesUpTo(443) | not IsSquare(R! 94) where R:= ResidueClassRing(p)]; // Vincenzo Librandi, Sep 10 2012

(MAGMA) [p: p in PrimesInInterval(3, 443) | JacobiSymbol(94, p) eq -1]; // Bruno Berselli, Sep 10 2012

CROSSREFS

Sequence in context: A238501 A133425 A103802 * A165549 A055939 A154555

Adjacent sequences:  A038981 A038982 A038983 * A038985 A038986 A038987

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane.

EXTENSIONS

Offset changed from 0 to 1 by Vincenzo Librandi, Sep 10 2012

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 January 28 22:40 EST 2020. Contains 331328 sequences. (Running on oeis4.)