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A140548 Primes p such that neither p - 14 nor p + 14 is prime. 1
2, 7, 11, 13, 41, 71, 79, 101, 107, 109, 131, 139, 157, 173, 191, 199, 223, 229, 233, 239, 251, 281, 311, 313, 337, 347, 349, 379, 389, 401, 409, 421, 431, 439, 461, 467, 479, 487, 491, 499, 503, 521, 541, 547, 569, 619, 641, 643, 653, 683, 701, 709, 727, 739 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Harvey P. Dale, Table of n, a(n) for n = 1..1000

MATHEMATICA

Join[{2, 7, 11}, Select[Prime[Range[2, 200]], NoneTrue[#+{14, -14}, PrimeQ]&]] (* The program uses the NoneTrue function from Mathematica version 10 *) (* Harvey P. Dale, Mar 10 2015 *)

CROSSREFS

Sequence in context: A040128 A209630 A235266 * A243630 A287107 A308550

Adjacent sequences:  A140545 A140546 A140547 * A140549 A140550 A140551

KEYWORD

nonn

AUTHOR

Juri-Stepan Gerasimov, Jun 30 2008, Aug 15 2009

EXTENSIONS

Corrected (459 removed) by R. J. Mathar, Apr 25 2010

STATUS

approved

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Last modified September 17 06:52 EDT 2019. Contains 327119 sequences. (Running on oeis4.)