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A105057
Numbers n such that 10000 * n - 1 is prime.
0
5, 6, 8, 14, 18, 20, 24, 29, 33, 38, 39, 41, 42, 53, 60, 62, 66, 68, 77, 80, 84, 99, 104, 105, 108, 119, 120, 123, 125, 131, 140, 141, 161, 164, 167, 171, 179, 180, 182, 186, 189, 194, 195, 201, 207, 222, 231, 237, 245, 249, 258, 260, 264, 266, 270, 288, 294, 300
OFFSET
1,1
EXAMPLE
If n=5, then 10000 * 5 - 1 is prime.
If n=29, then 10000 * 29 - 1 is prime.
If n=60, then 10000 * 60 - 1 is prime.
MATHEMATICA
Select[Range[340], PrimeQ[10000*# - 1] &] (* Stefan Steinerberger, Feb 26 2006 *)
PROG
(PARI) is(n)=isprime(10000*n-1) \\ Charles R Greathouse IV, Jun 13 2017
CROSSREFS
Sequence in context: A323041 A105830 A067527 * A058336 A285499 A110461
KEYWORD
nonn,easy
AUTHOR
Parthasarathy Nambi, Apr 04 2005
EXTENSIONS
More terms from Stefan Steinerberger, Feb 26 2006
STATUS
approved