A217862 Primes p of the form p = 1 + 840*k for some k.

2521, 3361, 4201, 5881, 7561, 9241, 12601, 13441, 14281, 15121, 18481, 20161, 21001, 21841, 26041, 26881, 29401, 30241, 31081, 33601, 35281, 41161, 42841, 45361, 47041, 47881, 51241, 52081, 54601, 55441, 63841, 65521, 66361, 68041, 68881, 74761, 76441, 78121

Offset

1,1

Comments

This is a prime sequence based on the wheel factorization of 840. There are 192 congruence classes that form prime wheel spokes mod 840.

Links

Harvey P. Dale, Table of n, a(n) for n = 1..1000

Mathematica

Select[Prime[Range[5000]], Mod[#, 840] == 1 &]
Select[840*Range[0, 100]+1, PrimeQ] (* Harvey P. Dale, Mar 03 2018 *)

Crossrefs

Sequence in context: A172580 A172684 A172652 * A144971 A217588 A264339

Adjacent sequences: A217859 A217860 A217861 * A217863 A217864 A217865

Keyword

nonn,easy

Author

Joshua S.M. Weiner, Oct 13 2012

Status

approved