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A086943 Integers k such that R(k+7) = 3. 5
23, 293, 2993, 29993, 299993, 2999993, 29999993, 299999993, 2999999993, 29999999993, 299999999993, 2999999999993, 29999999999993, 299999999999993, 2999999999999993, 29999999999999993, 299999999999999993 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
R(a(n)) = A086942(n).
LINKS
FORMULA
a(n) = 3*10^n - 7.
MATHEMATICA
FromDigits/@Table[Join[{2}, Table[9, {n}], {3}], {n, 0, 20}] (* Harvey P. Dale, Aug 21 2011 *)
PROG
(Magma) [3*10^n-7: n in [1..25] ]; // Vincenzo Librandi, Aug 22 2011
(Maxima) A086943(n):=3*10^n-7$
makelist(A086943(n), n, 1, 17); /* Martin Ettl, Nov 08 2012 */
CROSSREFS
Sequence in context: A268992 A199031 A125435 * A131273 A023021 A022651
KEYWORD
nonn,base,easy
AUTHOR
Ray Chandler, Jul 24 2003
STATUS
approved

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Last modified February 22 20:08 EST 2024. Contains 370260 sequences. (Running on oeis4.)