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A084364 Define the operations M: multiply by 11, D: divide by 11, R: reverse digits. Sequence gives trajectory of 19 under action of M,R,D,R. 1
19, 28, 37, 46, 55, 64, 73, 82, 91, 19, 28, 37, 46, 55, 64, 73, 82, 91, 19, 28, 37, 46, 55, 64, 73, 82, 91, 19, 28, 37, 46, 55, 64, 73, 82, 91, 19, 28, 37, 46, 55, 64, 73, 82, 91, 19, 28, 37, 46, 55, 64, 73, 82, 91, 19, 28, 37, 46, 55, 64, 73, 82, 91, 19, 28, 37, 46, 55, 64 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,1
COMMENTS
Every such sequence is periodic. Sequences for a(1) = 1 to 18 are cyclic with a period of 1.
LINKS
EXAMPLE
19 -> 209 -> 902 -> 82 -> 28.
MATHEMATICA
mrdr[n_]:=FromDigits[Reverse[IntegerDigits[FromDigits[ Reverse[ IntegerDigits[ 11n]]]/ 11]]]; NestList[mrdr, 19, 70] (* Harvey P. Dale, Oct 01 2015 *)
CROSSREFS
Sequence in context: A091448 A067777 A065207 * A094677 A052224 A179955
KEYWORD
base,easy,nonn
AUTHOR
Amarnath Murthy, May 27 2003
EXTENSIONS
Edited by Patrick De Geest and N. J. A. Sloane, Jun 03 2003
STATUS
approved

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Last modified July 24 22:37 EDT 2024. Contains 374585 sequences. (Running on oeis4.)