A142253 Primes congruent to 4 mod 43.

47, 563, 821, 907, 1423, 2111, 2713, 2971, 3229, 3659, 3917, 4003, 4261, 4519, 4691, 5981, 6067, 6841, 7013, 7529, 7873, 8389, 8647, 8819, 9421, 9679, 9851, 10453, 10711, 10883, 11399, 11657, 11743, 12517, 12689, 13033, 13291, 13463, 13721, 13807, 14323

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[{4}, Mod[#, 43]]&] (* Vincenzo Librandi, Aug 24 2012 *)

Prog

(Magma) [p: p in PrimesUpTo(15000) | p mod 43 eq 4 ]; // Vincenzo Librandi, Aug 24 2012
(PARI) is(n)=isprime(n) && n%43==4 \\ Charles R Greathouse IV, Jul 03 2016

Crossrefs

Cf. A000040.

Sequence in context: A201090 A293368 A116146 * A142577 A098226 A106310

Adjacent sequences: A142250 A142251 A142252 * A142254 A142255 A142256

Keyword

nonn,easy

Author

N. J. A. Sloane, Jul 11 2008

Status

approved