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A141924
Primes congruent to 20 mod 23.
4
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
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
KEYWORD
nonn,easy
AUTHOR
N. J. A. Sloane, Jul 11 2008
STATUS
approved