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A142418 Primes congruent to 5 mod 49. 1
5, 103, 397, 593, 691, 887, 1181, 1279, 1867, 2063, 2161, 2357, 2749, 3533, 3631, 4219, 4513, 5003, 5101, 5297, 5591, 5689, 6277, 6473, 6571, 7159, 7649, 8237, 8629, 8923, 9413, 9511, 10099, 10589, 10687, 10883, 11177, 11471, 11863, 12157, 12451, 12647 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
FORMULA
a(n) ~ 42n log n. - Charles R Greathouse IV, Jul 03 2016
MATHEMATICA
Select[Prime[Range[2500]], MemberQ[{5}, Mod[#, 49]] &] (* Vincenzo Librandi, Aug 27 2012 *)
Select[Range[5, 13000, 49], PrimeQ] (* Harvey P. Dale, Jan 18 2017 *)
PROG
(Magma) [p: p in PrimesUpTo(16000) | p mod 49 eq 5]; // Vincenzo Librandi, Aug 27 2012 *)
(PARI) is(n)=isprime(n) && n%49==5 \\ Charles R Greathouse IV, Jul 03 2016
CROSSREFS
Cf. A000040.
Sequence in context: A266903 A052138 A308459 * A159523 A172116 A007619
KEYWORD
nonn,easy
AUTHOR
N. J. A. Sloane, Jul 11 2008
STATUS
approved

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Last modified May 23 16:36 EDT 2024. Contains 372765 sequences. (Running on oeis4.)