A274504 Primes with Kronecker symbol (p|14) != 1.

2, 7, 11, 17, 29, 31, 37, 41, 43, 47, 53, 67, 73, 89, 97, 103, 107, 109, 149, 163, 167, 179, 197, 199, 211, 223, 241, 257, 271, 277, 311, 313, 317, 331, 347, 353, 367, 373, 379, 383, 389, 409, 421, 433, 439, 443, 479, 491, 499, 503, 521, 541, 547, 557

Offset: 1

Author

Vincenzo Librandi, Jun 29 2016

Keywords

• nonn
• easy

Comments

Complement of A191017 in primes.

Conjecture: primes not congruent to (1, 3, 5, 9, 13, 15, 19, 23, 25, 27, 39, 45) mod 56.

Links

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

Crossrefs

Cf. A000040, A191017, A191061.

Programs

Magma

[p: p in PrimesUpTo(619) | not KroneckerSymbol(p, 14) eq 1];

Mathematica

Select[Prime[Range[200]], ! JacobiSymbol[#, 14] == 1 &]