A142251 Primes congruent to 2 mod 43.

2, 131, 389, 647, 733, 991, 1163, 1249, 2281, 2539, 2711, 2797, 2969, 3313, 3571, 4001, 4259, 4517, 4603, 4861, 5119, 5807, 6151, 6323, 6581, 7699, 8387, 8731, 9161, 9419, 9677, 10193, 10709, 11311, 11483, 11827, 12343, 12601, 13633, 14149, 14321, 14407

Offset

1,1

Links

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

Formula

a(n) ~ 42n log n. - Charles R Greathouse IV, Jul 03 2016

Mathematica

Select[Prime[Range[5000]], MemberQ[{2}, Mod[#, 43]]&] (* Vincenzo Librandi, Aug 24 2012 *)
Select[Range[2, 15000, 43], PrimeQ] (* Harvey P. Dale, Jan 02 2019 *)

Prog

(Magma) [p: p in PrimesUpTo(15000) | p mod 43 eq 2 ]; // Vincenzo Librandi, Aug 24 2012
(PARI) is(n)=isprime(n) && n%43==2 \\ Charles R Greathouse IV, Jul 03 2016

Crossrefs

Cf. A000040.

Sequence in context: A158110 A117626 A084549 * A125633 A089662 A119778

Adjacent sequences: A142248 A142249 A142250 * A142252 A142253 A142254

Keyword

nonn,easy

Author

N. J. A. Sloane, Jul 11 2008

Status

approved