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A142604
Primes congruent to 4 mod 55.
1
59, 389, 499, 719, 829, 1049, 1489, 1709, 2039, 2699, 3359, 3469, 4019, 4129, 4349, 4679, 4789, 5009, 5119, 5449, 5669, 5779, 6329, 6659, 7649, 7759, 8089, 8419, 8969, 9629, 9739, 10069, 10289, 10399, 10729, 10949, 11059, 11279, 11719, 11939, 12049, 12269
OFFSET
1,1
LINKS
FORMULA
a(n) ~ 40n log n. - Charles R Greathouse IV, Jul 04 2016
MATHEMATICA
Select[Prime[Range[2500]], MemberQ[{4}, Mod[#, 55]] &] (* Vincenzo Librandi, Aug 30 2012 *)
Select[Range[4, 13000, 55], PrimeQ] (* Harvey P. Dale, Nov 22 2016 *)
PROG
(Magma) [p: p in PrimesUpTo(16000) | p mod 55 eq 4]; // Vincenzo Librandi, Aug 30 2012
(PARI) is(n)=isprime(n) && n%55==4 \\ Charles R Greathouse IV, Jul 04 2016
CROSSREFS
Cf. A000040.
Sequence in context: A290183 A118624 A244772 * A071771 A235223 A235216
KEYWORD
nonn,easy
AUTHOR
N. J. A. Sloane, Jul 11 2008
STATUS
approved