This site is supported by donations to The OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A107306 Numbers k such that (17*k - 19) is prime. 2
 6, 10, 24, 28, 30, 36, 40, 48, 58, 64, 66, 70, 78, 84, 90, 94, 96, 106, 118, 124, 136, 150, 156, 166, 168, 174, 180, 184, 196, 198, 204, 208, 226, 238, 244, 250, 274, 276, 288, 300, 318, 328, 330, 334, 336, 348, 358, 360, 366, 370, 376, 388, 394, 400, 406, 408 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS 17 and 19 are twin primes. LINKS Harvey P. Dale, Table of n, a(n) for n = 1..1000 EXAMPLE If k=64 then 17*k - 19 = 1069 (prime). MATHEMATICA Select[Range[2, 500], PrimeQ[17#-19]&] (* Harvey P. Dale, Jan 15 2015 *) PROG (MAGMA) [n: n in [2..100000] | IsPrime(17*n - 19)]; // Vincenzo Librandi, Nov 13 2010 (PARI) is(n)=isprime((17*n-19)) \\ Charles R Greathouse IV, Jun 12 2017 CROSSREFS Cf. A140543 (the resulting primes). Sequence in context: A199885 A024499 A143236 * A108899 A074289 A109099 Adjacent sequences:  A107303 A107304 A107305 * A107307 A107308 A107309 KEYWORD nonn,easy AUTHOR Parthasarathy Nambi, May 20 2005 STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified June 19 23:56 EDT 2019. Contains 324222 sequences. (Running on oeis4.)