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A142360
Primes congruent to 9 mod 47.
1
103, 197, 479, 761, 1231, 1607, 1889, 3299, 3581, 3769, 3863, 4051, 5179, 5273, 5743, 6871, 7247, 7529, 7717, 8093, 8563, 9127, 9221, 9973, 10067, 10631, 11383, 12041, 12323, 12511, 13451, 13921, 14767, 15331, 16553, 16741, 17117, 17681, 18433, 19373, 19843
OFFSET
1,1
LINKS
FORMULA
a(n) ~ 46n log n. - Charles R Greathouse IV, Jul 03 2016
MATHEMATICA
Select[Prime[Range[2500]], MemberQ[{9}, Mod[#, 47]]&] (* Vincenzo Librandi, Aug 26 2012 *)
PROG
(Magma) [p: p in PrimesUpTo(20000) | p mod 47 eq 9]; // Vincenzo Librandi, Aug 26 2012
(PARI) is(n)=isprime(n) && n%47==9 \\ Charles R Greathouse IV, Jul 03 2016
CROSSREFS
Cf. A000040.
Sequence in context: A136075 A142174 A265497 * A044335 A044716 A260470
KEYWORD
nonn,easy
AUTHOR
N. J. A. Sloane, Jul 11 2008
STATUS
approved