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

Author

N. J. A. Sloane, Jul 11 2008

Keywords

• nonn
• easy

Links

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

Crossrefs

Cf. A000040.

Programs

Magma

[p: p in PrimesUpTo(9000) | p mod 39 eq 1 ]; // Vincenzo Librandi, Aug 19 2012

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 *)

PARI

is(n)=isprime(n) && n%39==1 \\ Charles R Greathouse IV, Jul 03 2016

Formula

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