A141963 Primes congruent to 23 mod 27.

23, 131, 239, 293, 347, 401, 509, 563, 617, 887, 941, 1049, 1103, 1319, 1373, 1427, 1481, 1697, 1913, 2129, 2237, 2399, 2777, 2939, 3209, 3371, 3533, 3803, 3911, 4019, 4073, 4127, 4289, 4397, 4451, 4721, 4937, 5099, 5153, 5261, 5477, 5531, 5639, 5693, 5801

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[Range[23, 30000, 27], PrimeQ] (* Vladimir Joseph Stephan Orlovsky, Jun 21 2011 *)

Prog

(Magma) [p: p in PrimesUpTo(7000) | p mod 27 eq 23 ]; // Vincenzo Librandi, Aug 16 2012
(PARI) is(n)=isprime(n) && n%27==23 \\ Charles R Greathouse IV, Jul 02 2016

Crossrefs

Cf. A000040, A141964, A141965.

Sequence in context: A157146 A232827 A217496 * A157907 A039613 A009482

Adjacent sequences: A141960 A141961 A141962 * A141964 A141965 A141966

Keyword

nonn,easy

Author

N. J. A. Sloane, Jul 11 2008

Status

approved