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A142609 Primes congruent to 12 mod 55. 1
67, 397, 617, 727, 947, 1277, 1607, 2267, 2377, 2707, 2927, 3037, 3257, 3697, 3917, 4027, 4357, 5237, 5347, 5897, 6007, 6337, 6997, 7547, 7877, 8317, 8537, 8647, 8867, 9857, 9967, 10627, 10847, 10957, 11177, 11287, 11617, 12277, 12497, 13267, 13487, 13597 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 1..1000

FORMULA

a(n) ~ 40n log n. - Charles R Greathouse IV, Jul 04 2016

MATHEMATICA

Select[Prime[Range[2500]], MemberQ[{12}, Mod[#, 55]] &] (* Vincenzo Librandi, Aug 31 2012 *)

PROG

(MAGMA) [p: p in PrimesUpTo(16000) | p mod 55 eq 12]; // Vincenzo Librandi, Aug 31 2012

(PARI) is(n)=isprime(n) && n%55==12 \\ Charles R Greathouse IV, Jul 04 2016

CROSSREFS

Cf. A000040.

Sequence in context: A012865 A026911 A142371 * A262344 A323577 A142735

Adjacent sequences:  A142606 A142607 A142608 * A142610 A142611 A142612

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane, Jul 11 2008

STATUS

approved

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Last modified October 19 09:36 EDT 2021. Contains 348074 sequences. (Running on oeis4.)