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A086949 a(n) = k where R(k+9) = 5. 3
41, 491, 4991, 49991, 499991, 4999991, 49999991, 499999991, 4999999991, 49999999991, 499999999991, 4999999999991, 49999999999991, 499999999999991, 4999999999999991, 49999999999999991, 499999999999999991 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

R(a(n)) = A086946(n).

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 1..300

FORMULA

a(n) = 5*10^n - 9.

MATHEMATICA

5*10^Range[20]-9 (* Harvey P. Dale, Nov 29 2018 *)

PROG

(MAGMA) [5*10^n-9: n in [1..25] ]; // Vincenzo Librandi, Aug 22 2011

CROSSREFS

Sequence in context: A166843 A098958 A269073 * A177504 A297976 A208048

Adjacent sequences:  A086946 A086947 A086948 * A086950 A086951 A086952

KEYWORD

nonn,easy

AUTHOR

Ray Chandler, Jul 24 2003

STATUS

approved

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Last modified December 15 04:23 EST 2019. Contains 329991 sequences. (Running on oeis4.)