A141869 -id:A141869 - cp's OEIS frontend

A215170 Primes congruent to {2, 5} mod 19.

2, 5, 43, 59, 97, 157, 173, 211, 233, 271, 347, 401, 439, 461, 499, 613, 727, 743, 857, 971, 1009, 1031, 1069, 1123, 1237, 1259, 1297, 1373, 1427, 1487, 1579, 1601, 1693, 1753, 1867, 1997, 2111, 2339, 2377, 2399, 2437, 2551, 2719, 2741, 2833, 2909, 2969

Offset: 1

Vincenzo Librandi, Aug 06 2012

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

Cf. A141869, A102851, A045368.

[ p: p in PrimesUpTo(3000) | p mod 19 in {2, 5} ];

Select[Prime[Range[3000]],MemberQ[{2,5},Mod[#,19]]&]

A141880 Primes congruent to 15 mod 19.

Original entry on oeis.org

53, 167, 281, 433, 509, 547, 661, 1117, 1193, 1231, 1307, 1459, 1801, 1877, 2029, 2143, 2333, 2371, 2447, 2713, 2789, 2903, 3169, 3359, 3511, 3701, 3739, 3853, 3929, 3967, 4157, 4271, 4423, 4651, 4993, 5107, 5297, 5449, 5563, 5639, 5791, 5867, 5981, 6133

Offset: 1

N. J. A. Sloane, Jul 11 2008

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

Cf. A000040, A141869.

[p: p in PrimesUpTo(7000) | p mod 19 eq 15 ]; // Vincenzo Librandi, Aug 15 2012

Select[Range[15,5000,19],PrimeQ[#]&] (* Vladimir Joseph Stephan Orlovsky, Apr 03 2011*)
Select[Prime[Range[800]],Mod[#,19]==15&] (* Harvey P. Dale, Aug 17 2023 *)

is(n)=isprime(n) && n%19==15 \\ Charles R Greathouse IV, Jul 03 2016

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

cp's OEIS Frontend

A215170 Primes congruent to {2, 5} mod 19.

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