A142607 Primes congruent to 8 mod 55.

173, 283, 503, 613, 1163, 1493, 1823, 1933, 2153, 2593, 3253, 3583, 3803, 4133, 4243, 4463, 4793, 4903, 5233, 5563, 5783, 6113, 6553, 6883, 7103, 7213, 7433, 7873, 8093, 8423, 8753, 8863, 9413, 9743, 10513, 10733, 11173, 11393, 11503, 11833, 12163, 12713

Offset

1,1

Links

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

Formula

a(n) ~ 40n log n. - Charles R Greathouse IV, Jul 04 2016

Mathematica

Select[Prime[Range[2500]], MemberQ[{8}, Mod[#, 55]] &] (* Vincenzo Librandi, Aug 31 2012 *)
Select[Range[8, 13000, 55], PrimeQ] (* Harvey P. Dale, Jul 10 2023 *)

Prog

(Magma) [p: p in PrimesUpTo(16000) | p mod 55 eq 8]; // Vincenzo Librandi, Aug 31 2012
(PARI) is(n)=isprime(n) && n%55==8 \\ Charles R Greathouse IV, Jul 04 2016

Crossrefs

Cf. A000040.

Sequence in context: A142436 A322842 A063645 * A241045 A241046 A142206

Adjacent sequences: A142604 A142605 A142606 * A142608 A142609 A142610

Keyword

nonn,easy

Author

N. J. A. Sloane, Jul 11 2008

Status

approved