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A141909 Primes congruent to 4 mod 23. 1
73, 211, 257, 349, 487, 809, 947, 1039, 1223, 1361, 1453, 1499, 1637, 1867, 1913, 2143, 2281, 2557, 2741, 2833, 2879, 2971, 3109, 4259, 4397, 4673, 4903, 5087, 5179, 5501, 5639, 5869, 6007, 6053, 6329, 6421, 7019, 7433, 8123, 8353, 8537, 8629, 8951, 9043 (list; graph; refs; listen; history; text; internal format)
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 03 2016

MATHEMATICA

Select[Range[4, 10000, 23], PrimeQ] (* Vladimir Joseph Stephan Orlovsky, Apr 05 2011 *)

PROG

(MAGMA) [p: p in PrimesUpTo(10000) | p mod 23 eq 4 ]; // Vincenzo Librandi, Aug 16 2012

(PARI) is(n)=isprime(n) && n%23==4 \\ Charles R Greathouse IV, Jul 03 2016

CROSSREFS

Cf. A000040, A040984, A141908, A100201.

Sequence in context: A122723 A089786 A142894 * A296187 A142517 A158711

Adjacent sequences:  A141906 A141907 A141908 * A141910 A141911 A141912

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane, Jul 11 2008

STATUS

approved

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Last modified August 8 08:27 EDT 2020. Contains 336293 sequences. (Running on oeis4.)