A111092 Primes congruent to {1,69} mod 70.

71, 139, 211, 281, 349, 419, 421, 491, 631, 701, 769, 839, 911, 1049, 1051, 1259, 1399, 1471, 1609, 1889, 2029, 2099, 2239, 2309, 2311, 2381, 2521, 2591, 2659, 2729, 2731, 2801, 2939, 3011, 3079, 3221, 3359, 3361

Offset

1,1

Comments

For every prime p here, the cyclotomic polynomial Phi(35p,x) is flat.

Links

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

Mathematica

Select[Prime[Range[500]], MemberQ[{1, 69}, Mod[#, 70]] &] (* Vincenzo Librandi, Aug 14 2012 *)

Prog

(Magma) [p: p in PrimesUpTo(4000) | p mod 70 in [1, 69]]; // Vincenzo Librandi, Aug 14 2012

Crossrefs

Cf. A000040, A117223.

Sequence in context: A044194 A044575 A039543 * A140732 A025023 A253016

Adjacent sequences: A111089 A111090 A111091 * A111093 A111094 A111095

Keyword

nonn,easy

Author

Giorgio Balzarotti and Paolo P. Lava, Oct 13 2005

Extensions

Edited by T. D. Noe, May 19 2009

Status

approved