A142902 Primes congruent to 23 mod 63.

23, 149, 401, 653, 1031, 1283, 1409, 1787, 1913, 2039, 2417, 2543, 3299, 3677, 3803, 3929, 4937, 5189, 5441, 5693, 6197, 6323, 6449, 6701, 6827, 7079, 7331, 7457, 7583, 8087, 8969, 9221, 9473, 9851, 10103, 10607, 10733, 10859, 11489, 11867, 12119, 12497

Offset

1,1

Links

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

Formula

a(n) ~ 36n log n. - Charles R Greathouse IV, Jul 03 2016

Mathematica

Select[Prime[Range[1900]], MemberQ[{23}, Mod[#, 63]] &] (* Vincenzo Librandi, Sep 06 2012 *)
Select[Range[23, 13000, 63], PrimeQ] (* Harvey P. Dale, Oct 28 2015 *)

Prog

(Magma) [p: p in PrimesUpTo(13000) | p mod 63 eq 23 ] ; // Vincenzo Librandi, Sep 05 2012
(PARI) is(n)=isprime(n) && n%63==23 \\ Charles R Greathouse IV, Jul 03 2016

Crossrefs

Cf. A000040.

Sequence in context: A255418 A268778 A231207 * A362315 A125333 A126491

Adjacent sequences: A142899 A142900 A142901 * A142903 A142904 A142905

Keyword

nonn,easy

Author

N. J. A. Sloane, Jul 11 2008

Status

approved