A142677 Primes congruent to 20 mod 57.

191, 419, 647, 761, 1103, 1217, 1559, 1787, 1901, 2129, 2243, 2357, 2699, 2927, 3041, 4409, 4523, 4637, 4751, 6689, 6803, 6917, 7487, 7829, 8171, 8513, 8627, 8741, 8969, 9311, 9539, 9767, 10223, 10337, 11933, 12161, 12503, 12959, 13187, 13757, 14327, 14669

Offset

1,1

Links

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

Mathematica

Select[Prime[Range[2400]], MemberQ[{20}, Mod[#, 57]] &] (* Vincenzo Librandi, Sep 01 2012 *)
Select[Range[20, 15000, 57], PrimeQ] (* Harvey P. Dale, Dec 09 2013 *)

Prog

(Magma) [p: p in PrimesUpTo(15000) | p mod 57 eq 20 ]; // Vincenzo Librandi, Sep 01 2012

Crossrefs

Cf. A000040.

Sequence in context: A070831 A147108 A147116 * A142562 A142619 A337791

Adjacent sequences: A142674 A142675 A142676 * A142678 A142679 A142680

Keyword

nonn,easy

Author

N. J. A. Sloane, Jul 11 2008

Status

approved