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A141868 Primes congruent to 1 mod 19. 4
191, 229, 419, 457, 571, 647, 761, 1103, 1217, 1483, 1559, 1597, 1787, 1901, 2053, 2129, 2243, 2281, 2357, 2699, 2851, 2927, 3041, 3079, 3307, 3877, 4219, 4409, 4447, 4523, 4561, 4637, 4751, 4789, 4903, 5701, 6043, 6271, 6689, 6803, 6841, 6917, 7069, 7297 (list; graph; refs; listen; history; text; internal format)
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 02 2016

MATHEMATICA

Select[Prime[Range[2000]], MemberQ[{1}, Mod[#, 19]]&] (* Vincenzo Librandi, Aug 15 2012 *)

PROG

(MAGMA) [p: p in PrimesUpTo(8000) | p mod 19 eq 1 ]; // Vincenzo Librandi, Aug 15 2012

(PARI) is(n)=isprime(n) && n%19==1 \\ Charles R Greathouse IV, Jul 02 2016

CROSSREFS

Sequence in context: A160784 A139650 A139977 * A059244 A136068 A045141

Adjacent sequences:  A141865 A141866 A141867 * A141869 A141870 A141871

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane, Jul 11 2008

STATUS

approved

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Last modified October 23 09:28 EDT 2019. Contains 328345 sequences. (Running on oeis4.)