A142177 Primes congruent to 31 mod 39.

31, 109, 421, 499, 577, 733, 811, 967, 1123, 1201, 1279, 1669, 1747, 2137, 2293, 2371, 2683, 2917, 3229, 3307, 3463, 3541, 3697, 3853, 3931, 4243, 4789, 5023, 5101, 5179, 5413, 5569, 5647, 5881, 6037, 6271, 6427, 6661, 7129, 7207, 7753, 8221, 8377, 8689

Offset

1,1

Links

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

Formula

a(n) ~ 24n log n. - Charles R Greathouse IV, Jul 03 2016

Mathematica

Select[Prime[Range[3000]], MemberQ[{31}, Mod[#, 39]]&] (* Vincenzo Librandi, Aug 20 2012 *)

Prog

(Magma) [p: p in PrimesUpTo(10000) | p mod 39 eq 31 ]; // Vincenzo Librandi, Aug 20 2012
(PARI) is(n)=isprime(n) && n%39==31 \\ Charles R Greathouse IV, Jul 03 2016

Crossrefs

Cf. A000040.

Sequence in context: A141877 A057230 A225397 * A281194 A063397 A044282

Adjacent sequences: A142174 A142175 A142176 * A142178 A142179 A142180

Keyword

nonn,easy

Author

N. J. A. Sloane, Jul 11 2008

Status

approved