A140442 Primes congruent to 9 mod 14.

23, 37, 79, 107, 149, 163, 191, 233, 317, 331, 359, 373, 401, 443, 457, 499, 541, 569, 653, 709, 751, 821, 863, 877, 919, 947, 1031, 1087, 1129, 1171, 1213, 1283, 1297, 1367, 1381, 1409, 1423, 1451, 1493, 1549, 1619, 1759, 1787, 1801, 1871, 1913, 1997

Offset

1,1

Links

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

Formula

a(n) = A045392(n+1) = A045383(n+2). - Zak Seidov, Mar 12 2014

a(n) ~ 6n log n. - Charles R Greathouse IV, Jul 03 2016

Mathematica

Select[Prime[Range[500]], MemberQ[{9}, Mod[#, 14]]&] (* Vincenzo Librandi, Aug 07 2012 *)
Select[Range[9, 2000, 14], PrimeQ] (* Harvey P. Dale, Apr 17 2015 *)

Prog

(Magma) [p: p in PrimesUpTo(2000)|p mod 14 in {9}] // Vincenzo Librandi, Dec 18 2010
(PARI) is(n)=isprime(n) && n%14==9 \\ Charles R Greathouse IV, Jul 03 2016

Crossrefs

Primes arising in sequences A045437, A045458, A045471, A045473.

A090613 gives prime index.

Cf. A090614.

Sequence in context: A186883 A068016 A338270 * A078731 A133957 A133980

Adjacent sequences: A140439 A140440 A140441 * A140443 A140444 A140445

Keyword

nonn,easy

Author

Juri-Stepan Gerasimov, Jun 26 2008

Extensions

1451 inserted by R. J. Mathar, Sep 13 2008

Status

approved