A142159 Primes congruent to 1 mod 39.

79, 157, 313, 547, 859, 937, 1093, 1171, 1249, 1327, 1483, 1873, 1951, 2029, 2341, 2731, 2887, 3121, 3433, 3511, 3823, 4057, 4447, 4603, 4759, 4993, 5227, 5851, 6007, 6163, 6397, 6553, 6709, 7177, 7333, 7411, 7489, 7723, 7879, 8191, 8269, 8581, 8737, 8893

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[{1}, Mod[#, 39]]&] (* Vincenzo Librandi, Aug 19 2012 *)
Select[Range[1, 9000, 39], PrimeQ] (* Harvey P. Dale, Dec 21 2014 *)

Prog

(Magma)[p: p in PrimesUpTo(9000) | p mod 39 eq 1 ]; // Vincenzo Librandi, Aug 19 2012
(PARI) is(n)=isprime(n) && n%39==1 \\ Charles R Greathouse IV, Jul 03 2016

Crossrefs

Cf. A000040.

Sequence in context: A142082 A031890 A140008 * A046050 A044330 A044711

Adjacent sequences: A142156 A142157 A142158 * A142160 A142161 A142162

Keyword

nonn,easy

Author

N. J. A. Sloane, Jul 11 2008

Status

approved