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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A038960 Primes p such that 74 is not a square mod p. 1
3, 11, 17, 23, 31, 53, 67, 79, 83, 89, 97, 101, 103, 107, 113, 139, 149, 157, 167, 173, 181, 191, 193, 197, 199, 211, 229, 239, 241, 257, 269, 281, 293, 307, 311, 313, 317, 349, 353, 373, 379, 383, 397, 401, 409 (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[2120], JacobiSymbol[74, #] == - 1 &] (* Vincenzo Librandi, Sep 09 2012 *)

PROG

(MAGMA) [ p: p in PrimesUpTo(409) | not IsSquare(R! 74) where R:= ResidueClassRing(p) ]; // Vincenzo Librandi, Sep 10 2012

CROSSREFS

Sequence in context: A141339 A069348 A165561 * A019397 A108328 A153419

Adjacent sequences:  A038957 A038958 A038959 * A038961 A038962 A038963

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane.

EXTENSIONS

Offset changed from 0 to 1 by Vincenzo Librandi, Sep 09 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 November 14 19:59 EST 2019. Contains 329128 sequences. (Running on oeis4.)