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A062666 Numbers k such that 100^k - 99^k is prime. 89
2, 5, 19, 59, 1013, 2371, 13967, 44683 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Terms > 1000 correspond to probable primes.
a(9) > 10^5. - Robert Price, Jul 10 2013
LINKS
MATHEMATICA
lst={}; k=100; Do[If[PrimeQ[k^n-(k-1)^n], Print[n]; AppendTo[lst, n]], {n, 10^5}]; lst (* Vladimir Joseph Stephan Orlovsky, Aug 26 2008 *)
PROG
(PARI) forprime(p=2, 1e5, if(ispseudoprime(100^p-99^p), print1(p", "))) \\ Charles R Greathouse IV, Jun 10 2011
CROSSREFS
Sequence in context: A215169 A072468 A148430 * A148431 A321006 A320276
KEYWORD
nonn,hard
AUTHOR
Mike Oakes, May 18 2001, May 19 2001
EXTENSIONS
Edited by T. D. Noe, Oct 30 2008
a(7)-a(8) from Robert Price, Jul 10 2013
STATUS
approved

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Last modified March 29 09:14 EDT 2024. Contains 371268 sequences. (Running on oeis4.)