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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A191074 Primes p that have Kronecker symbol (p|55) = -1. 1
3, 19, 23, 29, 37, 41, 47, 53, 61, 67, 79, 97, 101, 103, 109, 113, 131, 137, 139, 149, 151, 157, 163, 211, 223, 239, 241, 257, 271, 281, 313, 317, 349, 353, 359, 367, 383, 397, 409, 431, 433, 439, 443, 461, 463, 467, 479, 487, 491, 541, 569, 571, 577, 587 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Originally erroneously named "Primes that are not squares mod 55", which contains this as a subsequence. - M. F. Hasler, Jan 18 2016

LINKS

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

MATHEMATICA

Select[Prime[Range[200]], JacobiSymbol[#, 55]==-1&]

PROG

(MAGMA) [p: p in PrimesUpTo(587) | JacobiSymbol(p, 55) eq -1]; // Vincenzo Librandi, Sep 11 2012

CROSSREFS

Cf. A191036.

Sequence in context: A022128 A041381 A042231 * A019408 A070045 A323784

Adjacent sequences:  A191071 A191072 A191073 * A191075 A191076 A191077

KEYWORD

nonn,easy

AUTHOR

T. D. Noe, May 25 2011

EXTENSIONS

Definition corrected, following a suggestion from David Broadhurst, by M. F. Hasler, Jan 18 2016

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 April 23 18:15 EDT 2019. Contains 322387 sequences. (Running on oeis4.)