A142170 Primes congruent to 19 mod 39.

19, 97, 331, 409, 487, 643, 877, 1033, 1423, 1579, 1657, 2203, 2281, 2437, 2593, 2671, 2749, 3061, 3217, 3373, 3529, 3607, 3919, 4153, 4231, 4621, 4933, 5011, 5167, 5323, 5479, 5557, 5791, 5869, 6337, 6571, 6883, 6961, 7039, 7351, 7507, 7741, 8053, 8209

Offset

1,1

Links

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

Formula

a(n) ~ 24n log n. - Charles R Greathouse IV, Jul 03 2016

Mathematica

Select[Prime[Range[1100]], Mod[#, 39]==19&]  (* Harvey P. Dale, Mar 30 2011 *)
Select[Prime[Range[3000]], MemberQ[{19}, Mod[#, 39]]&] (* Vincenzo Librandi, Aug 20 2012 *)

Prog

(Magma) [p: p in PrimesUpTo(9000) | p mod 39 eq 19 ]; // Vincenzo Librandi, Aug 20 2012
(PARI) is(n)=isprime(n) && n%39==19 \\ Charles R Greathouse IV, Jul 03 2016

Crossrefs

Cf. A000040.

Sequence in context: A277977 A080187 A362301 * A069593 A299733 A086120

Adjacent sequences: A142167 A142168 A142169 * A142171 A142172 A142173

Keyword

nonn,easy

Author

N. J. A. Sloane, Jul 11 2008

Status

approved