A108874 Numbers k such that 41*k + 43 is prime.

0, 14, 20, 26, 38, 44, 48, 56, 60, 66, 80, 90, 116, 126, 138, 140, 146, 158, 170, 174, 186, 198, 200, 224, 228, 230, 236, 240, 248, 254, 264, 266, 270, 290, 294, 300, 306, 308, 314, 320, 324, 338, 354, 356, 368, 374, 378, 384, 390, 398, 404, 416, 426, 434, 446

Offset

1,2

Links

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

Example

If k=0 then 41*k + 43 = 43 (prime).
If k=90 then 41*k + 43 = 3733 (prime).

Mathematica

Select[Range[0, 500], PrimeQ[41#+43]&] (* Harvey P. Dale, May 09 2012 *)

Prog

(Magma) [n: n in [0..500] | IsPrime(41*n+43)]; - Vincenzo Librandi, Nov 13 2010
(PARI) is(n)=isprime(41*n+43) \\ Charles R Greathouse IV, Jun 12 2017

Crossrefs

Sequence in context: A144585 A186193 A285426 * A063848 A110968 A054017

Adjacent sequences: A108871 A108872 A108873 * A108875 A108876 A108877

Keyword

nonn,easy

Author

Parthasarathy Nambi, Jul 30 2005

Status

approved