A142062 Primes congruent to 23 mod 33.

23, 89, 353, 419, 617, 683, 881, 947, 1013, 1277, 1409, 1607, 1871, 2003, 2069, 2267, 2333, 2399, 2531, 2663, 2729, 2861, 2927, 3191, 3257, 3323, 3389, 3719, 3851, 3917, 4049, 4643, 4973, 5039, 5171, 5237, 5303, 5501, 5897, 6029, 6359, 6491, 6689, 7019

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[23, 20000, 33], PrimeQ] (* Vladimir Joseph Stephan Orlovsky, Jun 24 2011 *)
Select[Prime[Range[3000]], MemberQ[{23}, Mod[#, 33]]&] (* Vincenzo Librandi, Aug 18 2012 *)

Prog

(Magma) [p: p in PrimesUpTo(8000) | p mod 33 eq 23 ]; // Vincenzo Librandi, Aug 18 2012
(PARI) is(n)=isprime(n) && n%33==23 \\ Charles R Greathouse IV, Jul 02 2016

Crossrefs

Cf. A000040.

Sequence in context: A244453 A158537 A117049 * A050529 A215613 A306138

Adjacent sequences: A142059 A142060 A142061 * A142063 A142064 A142065

Keyword

nonn,easy

Author

N. J. A. Sloane, Jul 11 2008

Status

approved