login

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

A142357
Primes congruent to 6 mod 47.
1
53, 241, 523, 617, 1087, 1181, 1933, 2027, 2309, 2591, 3061, 3343, 3719, 3907, 4001, 4283, 5693, 5881, 6163, 6257, 7103, 7573, 7949, 8231, 8419, 8513, 9547, 9829, 9923, 10111, 10487, 10957, 11239, 11897, 12743, 14153, 14341, 14717, 15187, 16033, 16127
OFFSET
1,1
LINKS
FORMULA
a(n) ~ 46n log n. - Charles R Greathouse IV, Jul 03 2016
MATHEMATICA
Select[47Range[350]+6, PrimeQ] (* Harvey P. Dale, Jun 20 2011 *)
Select[Prime[Range[2500]], MemberQ[{6}, Mod[#, 47]]&] (* Vincenzo Librandi, Aug 26 2012 *)
PROG
(Magma) [p: p in PrimesUpTo(18000) | p mod 47 eq 6]; // Vincenzo Librandi, Aug 26 2012
(PARI) is(n)=isprime(n) && n%47==6 \\ Charles R Greathouse IV, Jul 03 2016
CROSSREFS
Cf. A000040.
Sequence in context: A142026 A084669 A256339 * A142061 A107150 A036911
KEYWORD
nonn,easy
AUTHOR
N. J. A. Sloane, Jul 11 2008
STATUS
approved