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!)
A038952 Primes p such that 69 is not a square mod p. 4
2, 7, 19, 29, 37, 41, 43, 47, 59, 61, 67, 71, 79, 97, 101, 103, 109, 131, 157, 167, 173, 179, 181, 197, 199, 229, 233, 239, 241, 257, 269, 283, 311, 313, 317, 337, 347, 353, 367, 373, 379, 421, 433, 443, 449, 457 (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[69, #] == - 1 &] (* Vincenzo Librandi, Sep 09 2012 *)

PROG

(PARI) select(n->!issquare(Mod(69, n)), primes(100)) \\ Charles R Greathouse IV, Sep 09 2012

CROSSREFS

Sequence in context: A100408 A259370 A103034 * A144589 A179002 A232667

Adjacent sequences:  A038949 A038950 A038951 * A038953 A038954 A038955

KEYWORD

nonn

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 August 5 18:00 EDT 2021. Contains 346488 sequences. (Running on oeis4.)