A141924 Primes congruent to 20 mod 23.

43, 89, 181, 227, 457, 503, 641, 733, 1009, 1193, 1423, 1607, 1699, 2113, 2251, 2297, 2389, 2711, 2803, 3079, 3217, 3539, 3631, 3677, 3769, 3907, 4091, 4229, 4597, 4643, 4919, 5011, 5333, 5471, 5563, 5701, 5839, 6299, 6529, 7127, 7219, 7541, 7817, 8093

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[20, 20000, 23], PrimeQ] (* Vladimir Joseph Stephan Orlovsky, May 18 2011 *)

Prog

(Magma) [p: p in PrimesUpTo(9000) | p mod 23 eq 20 ]; // Vincenzo Librandi, Aug 16 2012
(PARI) is(n)=isprime(n) && n%23==20 \\ Charles R Greathouse IV, Jul 02 2016

Crossrefs

Cf. A000040, A141925, A141926.

Sequence in context: A039526 A108394 A288641 * A122617 A306114 A044181

Adjacent sequences: A141921 A141922 A141923 * A141925 A141926 A141927

Keyword

nonn,easy

Author

N. J. A. Sloane, Jul 11 2008

Status

approved