A141870 Primes congruent to 4 mod 19.

23, 61, 137, 251, 479, 593, 631, 821, 859, 1049, 1087, 1163, 1201, 1277, 1429, 1543, 1619, 1657, 1733, 1847, 1999, 2113, 2341, 2417, 2531, 2683, 2797, 3253, 3329, 3557, 3671, 3709, 3823, 4013, 4051, 4127, 4241, 4507, 4583, 4621, 5039, 5077, 5153, 5381, 5419

Offset

1,1

Links

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

Formula

a(n) ~ 18n log n. - Charles R Greathouse IV, Jul 03 2016

Mathematica

Select[Range[4, 5000, 19], PrimeQ[#]&] (* Vladimir Joseph Stephan Orlovsky, Mar 31 2011*)

Prog

(Magma) [p: p in PrimesUpTo(8000) | p mod 19 eq 4 ]; // Vincenzo Librandi, Aug 15 2012
(PARI) is(n)=isprime(n) && n%19==4 \\ Charles R Greathouse IV, Jul 03 2016

Crossrefs

Cf. A105854, A141881, A141882, A141883.

Sequence in context: A165286 A031342 A215166 * A115685 A069798 A067194

Adjacent sequences: A141867 A141868 A141869 * A141871 A141872 A141873

Keyword

nonn,easy

Author

N. J. A. Sloane, Jul 11 2008

Status

approved