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 A120827 Primes with n consecutive digits ascending beginning with the digit nine. 8
 13, 29, 43 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Digits are in ascending order beginning with 9 and after 9 comes 0. The sequence "Primes with n consecutive digits descending beginning with the digit nine" has no terms. There is no further term up to 26000. - Farideh Firoozbakht, Sep 11 2006 LINKS EXAMPLE 13 is a term since 9012345678901 is a prime. MATHEMATICA fQ[n_] := PrimeQ@ FromDigits@ Mod[8+Range@n, 10]; lst = {}; Do[ If[fQ@n, AppendTo[lst, n]; Print@n], {n, 5000}]; lst Flatten[Position[Table[FromDigits[PadRight[{}, n, {9, 0, 1, 2, 3, 4, 5, 6, 7, 8}]], {n, 100}], _?PrimeQ]] (* Harvey P. Dale, Sep 06 2015 *) CROSSREFS Cf. A006055, A120819, A120820, A120821, A120822, A120823, A120824, A120825, A120826. Sequence in context: A045472 A240950 A141293 * A320631 A228069 A044074 Adjacent sequences:  A120824 A120825 A120826 * A120828 A120829 A120830 KEYWORD base,bref,hard,nonn AUTHOR Robert G. Wilson v, Jul 05 2006 STATUS approved

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Last modified December 11 02:05 EST 2018. Contains 318049 sequences. (Running on oeis4.)