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A140442 Primes congruent to 9 mod 14. 1
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 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
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
KEYWORD
nonn,easy
AUTHOR
EXTENSIONS
1451 inserted by R. J. Mathar, Sep 13 2008
STATUS
approved

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Last modified February 22 08:18 EST 2024. Contains 370240 sequences. (Running on oeis4.)