A191062 Primes p that have Kronecker symbol (p|15) = -1.

7, 11, 13, 29, 37, 41, 43, 59, 67, 71, 73, 89, 97, 101, 103, 127, 131, 149, 157, 163, 179, 191, 193, 223, 239, 251, 269, 277, 281, 283, 307, 311, 313, 337, 359, 367, 373, 389, 397, 401, 419, 431, 433, 449, 457, 461, 463, 479, 487, 491, 509, 521, 523, 547

Offset: 1

Author

T. D. Noe, May 25 2011

Keywords

• nonn
• easy

Comments

Originally erroneously named "Primes that are not squares mod 15". - M. F. Hasler, Jan 18 2016

Primes p == {7, 11, 13, 14} (mod 15). See A191018. - Wolfdieter Lang, May 24 2021

Links

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

Crossrefs

Cf. A191018.

Programs

Magma

[p: p in PrimesUpTo(547) | JacobiSymbol(p, 15) eq -1]; // Vincenzo Librandi, Sep 11 2012

Mathematica

Select[Prime[Range[200]], JacobiSymbol[#,15]==-1&]

Extensions

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