A142274 Primes congruent to 25 mod 43.

197, 283, 541, 971, 1229, 1487, 1831, 2003, 2089, 2347, 2777, 3121, 3637, 4153, 4583, 5099, 5443, 5701, 6131, 6217, 6389, 6733, 6991, 7507, 7937, 8539, 8969, 9227, 9743, 9829, 10259, 10861, 11119, 11549, 11807, 12323, 12409, 13183, 13441, 13613, 14387

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[{25}, Mod[#, 43]]&] (* Vincenzo Librandi, Aug 25 2012 *)
Select[Range[25, 15000, 43], PrimeQ] (* Harvey P. Dale, Jun 17 2022 *)

Prog

(Magma) [p: p in PrimesUpTo(16000) | p mod 43 eq 25 ]; // Vincenzo Librandi, Aug 25 2012
(PARI) is(n)=isprime(n) && n%43==25 \\ Charles R Greathouse IV, Jul 03 2016

Crossrefs

Cf. A000040.

Sequence in context: A127339 A345805 A142121 * A142624 A294187 A158223

Adjacent sequences: A142271 A142272 A142273 * A142275 A142276 A142277

Keyword

nonn,easy

Author

N. J. A. Sloane, Jul 11 2008

Status

approved