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A142391 Primes congruent to 40 mod 47. 1
181, 463, 557, 839, 1873, 2437, 2531, 2719, 3001, 3659, 3847, 4129, 4787, 5351, 5821, 6197, 6761, 6949, 7043, 7607, 8171, 8641, 8923, 9769, 10333, 10427, 10709, 11273, 11743, 12119, 12401, 12589, 13999, 14281, 14563, 14657, 14939, 15973, 16067, 16349, 16631 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
FORMULA
a(n) ~ 46n log n. - Charles R Greathouse IV, Jul 03 2016
MATHEMATICA
Select[Prime[Range[2500]], MemberQ[{40}, Mod[#, 47]]&] (* Vincenzo Librandi, Aug 27 2012 *)
Select[Range[40, 17000, 47], PrimeQ] (* Harvey P. Dale, Dec 01 2022 *)
PROG
(Magma) [p: p in PrimesUpTo(18000) | p mod 47 eq 40]; // Vincenzo Librandi, Aug 27 2012
(PARI) is(n)=isprime(n) && n%47==40 \\ Charles R Greathouse IV, Jul 03 2016
CROSSREFS
Cf. A000040.
Sequence in context: A063360 A217499 A113156 * A142552 A211553 A253821
KEYWORD
nonn,easy
AUTHOR
N. J. A. Sloane, Jul 11 2008
STATUS
approved

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Last modified May 23 10:34 EDT 2024. Contains 372760 sequences. (Running on oeis4.)