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A191085 Primes p that have Kronecker symbol (p|91) = -1. 1
2, 3, 11, 17, 37, 61, 67, 71, 101, 103, 109, 131, 137, 139, 149, 151, 157, 163, 173, 181, 193, 197, 199, 239, 251, 257, 269, 281, 283, 311, 313, 317, 331, 359, 367, 379, 401, 419, 421, 431, 433, 439, 449, 457, 463, 467, 487, 499, 503, 521, 523, 541, 557, 563 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Originally erroneously named "Primes that are not squares mod 91". - M. F. Hasler, Jan 18 2016

LINKS

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

MATHEMATICA

Select[Prime[Range[200]], JacobiSymbol[#, 91]==-1&]

PROG

(MAGMA) [p: p in PrimesUpTo(563) | JacobiSymbol(p, 91) eq -1]; // Vincenzo Librandi, Sep 11 2012

CROSSREFS

Cf. A191054.

Sequence in context: A038907 A019417 A176671 * A024859 A023870 A025099

Adjacent sequences:  A191082 A191083 A191084 * A191086 A191087 A191088

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

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Last modified September 29 04:06 EDT 2020. Contains 337420 sequences. (Running on oeis4.)