A141925 Primes congruent to 21 mod 23.

67, 113, 251, 389, 619, 757, 941, 1033, 1171, 1217, 1447, 1493, 1723, 1861, 1907, 1999, 2137, 2459, 2551, 2689, 3011, 3517, 3701, 3793, 3931, 4253, 4391, 4483, 4621, 4759, 4943, 5081, 5449, 6047, 6277, 6323, 6553, 6599, 6691, 6737, 6829, 6967, 7013, 7151

Offset

1,1

Links

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

Formula

a(n) ~ 22n log n. - Charles R Greathouse IV, Jul 02 2016

Mathematica

Select[Range[21, 20000, 23], PrimeQ] (* Vladimir Joseph Stephan Orlovsky, May 18 2011 *)

Prog

(Magma) [p: p in PrimesUpTo(9000) | p mod 23 eq 21 ]; // Vincenzo Librandi, Aug 16 2012
(PARI) is(n)=isprime(n) && n%23==21 \\ Charles R Greathouse IV, Jul 02 2016

Crossrefs

Cf. A000040, A141926.

Sequence in context: A141889 A289518 A229058 * A187990 A147100 A217180

Adjacent sequences: A141922 A141923 A141924 * A141926 A141927 A141928

Keyword

nonn,easy

Author

N. J. A. Sloane, Jul 11 2008

Status

approved