A142495 Primes congruent to 31 mod 51.

31, 337, 439, 541, 643, 1051, 1153, 1459, 1663, 1867, 2377, 2683, 2887, 3499, 3907, 4111, 4519, 4621, 4723, 5233, 5437, 5641, 5743, 6151, 6661, 6763, 6967, 7069, 7477, 7681, 8089, 8191, 8293, 8599, 8803, 9007, 9109, 9619, 9721, 10333, 10639, 11047, 11149, 11251

Offset

1,1

Links

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

Formula

a(n) ~ 32n log n. - Charles R Greathouse IV, Jul 03 2016

Mathematica

Select[Prime[Range[2400]], MemberQ[{31}, Mod[#, 51]] &] (* Vincenzo Librandi, Aug 28 2012 *)
Select[Range[31, 12000, 51], PrimeQ] (* Harvey P. Dale, Apr 24 2017 *)

Prog

(Magma) [p: p in PrimesUpTo(13000) | p mod 51 eq 31]; // Vincenzo Librandi, Aug 28 2012
(PARI) is(n)=isprime(n) && n%51==31 \\ Charles R Greathouse IV, Jul 03 2016

Crossrefs

Cf. A000040.

Sequence in context: A033175 A123568 A111675 * A100728 A332945 A296730

Adjacent sequences: A142492 A142493 A142494 * A142496 A142497 A142498

Keyword

nonn,easy

Author

N. J. A. Sloane, Jul 11 2008

Status

approved