A142250 Primes congruent to 1 mod 43.

173, 431, 947, 1033, 1291, 1549, 1721, 1979, 2237, 2753, 3011, 3527, 3613, 4129, 4817, 4903, 5333, 5419, 5591, 5849, 6451, 6709, 6967, 7741, 8171, 8429, 9203, 9461, 9547, 9719, 10321, 10837, 11353, 11783, 12041, 13159, 13331, 13417, 13933, 14449, 14621

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[{1}, Mod[#, 43]]&] (* Vincenzo Librandi, Aug 24 2012 *)
Select[Range[1, 15000, 43], PrimeQ] (* Harvey P. Dale, Jul 18 2022 *)

Prog

(Magma) [p: p in PrimesUpTo(15000) | p mod 43 eq 1 ]; // Vincenzo Librandi, Aug 24 2012
(PARI) is(n)=isprime(n) && n%43==1 \\ Charles R Greathouse IV, Jul 03 2016

Crossrefs

Cf. A000040.

Sequence in context: A130338 A275968 A142782 * A059243 A142134 A142849

Adjacent sequences: A142247 A142248 A142249 * A142251 A142252 A142253

Keyword

nonn,easy

Author

N. J. A. Sloane, Jul 11 2008

Status

approved