A142379 Primes congruent to 28 mod 47.

263, 733, 827, 1109, 1297, 1579, 1861, 2143, 2237, 2707, 2801, 3083, 3271, 3929, 4211, 4493, 5527, 5903, 6091, 6373, 7219, 7877, 8629, 9851, 10039, 10133, 10321, 10979, 11261, 11731, 12107, 12577, 12671, 12953, 13799, 14081, 14551, 15679, 15773, 16619, 16901

Offset

1,1

Links

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

Formula

a(n) ~ 46n log n. - Charles R Greathouse IV, Jul 03 2016

Mathematica

Select[Prime[Range[2500]], MemberQ[{28}, Mod[#, 47]] &] (* Vincenzo Librandi, Aug 27 2012 *)
Select[Range[28, 17000, 47], PrimeQ] (* Harvey P. Dale, Jul 21 2024 *)

Prog

(Magma) [p: p in PrimesUpTo(18000) | p mod 47 eq 28]; // Vincenzo Librandi, Aug 27 2012
(PARI) is(n)=isprime(n) && n%47==28 \\ Charles R Greathouse IV, Jul 03 2016

Crossrefs

Cf. A000040.

Sequence in context: A142754 A245877 A393453 * A128654 A236245 A343192

Adjacent sequences: A142376 A142377 A142378 * A142380 A142381 A142382

Keyword

nonn,easy

Author

N. J. A. Sloane, Jul 11 2008

Status

approved