A142555 Primes congruent to 25 mod 53.

131, 449, 661, 1297, 1721, 1933, 2039, 2251, 2357, 2887, 3947, 4159, 4583, 5113, 5431, 5749, 6067, 6173, 6491, 6703, 7127, 8081, 8293, 8929, 9883, 10837, 11261, 11579, 11897, 12109, 13063, 13381, 13487, 14653, 14759, 15077, 15289, 15607, 16349, 16561, 16879

Offset

1,1

Links

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

Formula

a(n) ~ 52n log n. - Charles R Greathouse IV, Jul 03 2016

Mathematica

Select[Prime[Range[2600]], MemberQ[{25}, Mod[#, 53]] &] (* Vincenzo Librandi, Aug 30 2012 *)
Select[Range[25, 17000, 53], PrimeQ] (* Harvey P. Dale, Jul 27 2013 *)

Prog

(Magma) [p: p in PrimesUpTo(20000) | p mod 53 eq 25]; // Vincenzo Librandi, Aug 30 2012
(PARI) is(n)=isprime(n) && n%53==25 \\ Charles R Greathouse IV, Jul 03 2016

Crossrefs

Cf. A000040, A144562.

Sequence in context: A142129 A068680 A276255 * A118507 A105837 A142205

Adjacent sequences: A142552 A142553 A142554 * A142556 A142557 A142558

Keyword

nonn,easy

Author

N. J. A. Sloane, Jul 11 2008

Status

approved