A142053 Primes congruent to 7 mod 33.

7, 73, 139, 271, 337, 601, 733, 997, 1063, 1129, 1327, 1459, 1657, 1723, 1789, 1987, 2053, 2251, 2383, 2647, 2713, 3109, 3307, 3373, 3571, 3637, 3769, 3967, 4099, 4231, 4297, 4363, 4561, 4759, 4957, 5023, 5419, 5683, 5749, 5881, 6079, 6211, 6277, 6343, 6607

Offset

1,1

Links

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

Formula

a(n) ~ 20n log n. - Charles R Greathouse IV, Jul 02 2016

Mathematica

Select[Range[7, 20000, 33], PrimeQ] (* Vladimir Joseph Stephan Orlovsky, Jun 25 2011 *)
Select[Prime[Range[3000]], MemberQ[{7}, Mod[#, 33]]&] (* Vincenzo Librandi, Aug 18 2012 *)

Prog

(Magma) [p: p in PrimesUpTo(8000) | p mod 33 eq 7 ]; // Vincenzo Librandi, Aug 18 2012
(PARI) is(n)=isprime(n) && n%33==7 \\ Charles R Greathouse IV, Jul 02 2016

Crossrefs

Cf. A000040.

Sequence in context: A080794 A082719 A188465 * A012049 A012158 A139966

Adjacent sequences: A142050 A142051 A142052 * A142054 A142055 A142056

Keyword

nonn,easy

Author

N. J. A. Sloane, Jul 11 2008

Status

approved