A142067 Primes congruent to 31 mod 33.

31, 97, 163, 229, 691, 757, 823, 1021, 1087, 1153, 1483, 1549, 1747, 1879, 2011, 2143, 2341, 2473, 2539, 2671, 2803, 3001, 3067, 3331, 3463, 3529, 3727, 3793, 4057, 4519, 4651, 4783, 5113, 5179, 5443, 5641, 5839, 6037, 6301, 6367, 6763, 6829, 6961, 7027

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[31, 20000, 33], PrimeQ] (* Vladimir Joseph Stephan Orlovsky, Jun 24 2011 *)
Select[Prime[Range[3000]], MemberQ[{31}, Mod[#, 33]]&] (* Vincenzo Librandi, Aug 18 2012 *)

Prog

(Magma) [p: p in PrimesUpTo(8000) | p mod 33 eq 31 ]; // Vincenzo Librandi, Aug 18 2012
(PARI) is(n)=isprime(n) && n%33==31 \\ Charles R Greathouse IV, Jul 02 2016

Crossrefs

Cf. A000040.

Sequence in context: A143032 A159014 A256323 * A081275 A139509 A187517

Adjacent sequences: A142064 A142065 A142066 * A142068 A142069 A142070

Keyword

nonn,easy

Author

N. J. A. Sloane, Jul 11 2008

Status

approved