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A177418 Primes of the form 10^n - 59. 1
41, 941, 9941, 99999941, 99999999999999999941, 99999999999999999999999999999999999941, 99999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999941 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
The next term (a(8)) has 248 digits. [From Harvey P. Dale, Dec 29 2011]
LINKS
MATHEMATICA
Select[10^Range[0, 400] - 59, PrimeQ] (* Harvey P. Dale, Dec 29 2011 *)
Select[Table[FromDigits[PadLeft[{4, 1}, n, 9]], {n, 2, 400}], PrimeQ] (* Harvey P. Dale, Feb 08 2024 *)
PROG
(Magma) [a: n in [2..250] | IsPrime(a) where a is 10^n-59];
CROSSREFS
Cf. A108506.
Sequence in context: A114529 A300173 A293619 * A038397 A104349 A091314
KEYWORD
nonn
AUTHOR
Vincenzo Librandi, Dec 11 2010
STATUS
approved

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Last modified March 29 04:59 EDT 2024. Contains 371264 sequences. (Running on oeis4.)