A161505 Primes congruent to {1, 7, 8, 25, 26, 32} mod 33.

7, 41, 59, 67, 73, 107, 131, 139, 157, 173, 191, 197, 199, 223, 239, 257, 263, 271, 331, 337, 389, 397, 421, 461, 463, 487, 503, 521, 569, 587, 593, 601, 619, 653, 659, 661, 701, 719, 727, 733, 751, 857, 859, 883, 983, 991, 997, 1031, 1049, 1063, 1097, 1123

Offset

1,1

Comments

The cyclotomic polynomial Phi(33p,x) is flat only for p in this sequence.

Links

Georg Fischer, Table of n, a(n) for n = 1..1000

Formula

Union of A142049, A142053, A142054, A142063, A142064, A142068.

Mathematica

Flatten[Table[Select[33*n+{-8, -7, -1, 1, 7, 8}, PrimeQ], {n, 50}]]

Crossrefs

Cf. A117223, A142049, A142053, A142054, A142063, A142064, A142068, A160495.

Sequence in context: A374234 A272387 A338771 * A105902 A031909 A080347

Adjacent sequences: A161502 A161503 A161504 * A161506 A161507 A161508

Keyword

nonn

Author

T. D. Noe, Jun 17 2009

Extensions

a(1)=7 inserted by Georg Fischer, Jul 26 2020

Status

approved