login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A094676 a(n) = least number m such that the quotient m/n is obtained merely by shifting the leftmost digit of m to the right end and the second digit of m is not zero. 7
1, 210526315789473684, 3103448275862068965517241379, 410256, 714285, 6101694915254237288135593220338983050847457627118644067796, 7101449275362318840579, 8101265822784, 91011235955056179775280898876404494382022471 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Here when the leftmost digit of m is shifted to the right end the number of digits may not decrease - compare A097717.
Least n-transposable number. A k-transposable number, 1 <= k <= 9, is one which is k times the number obtained when the leftmost digit is moved to the end.
REFERENCES
H. Camous, Jouer Avec Les Maths, "Chassez le naturel", Section I, Problem 3 pp. 20; 31-2, Les Editions D'Organisation, Paris 1984.
L. A. Graham, Ingenious Mathematical Problems and Methods, "End At The Beginning", Problem 72 pp. 44; 212-3, Dover NY 1959.
LINKS
FORMULA
a(n) = n prepended to n*(10^m - n)/(10*n - 1), where m = A094224(n) - 1.
EXAMPLE
a(4) = 410256 = 4*102564.
CROSSREFS
Sequence in context: A308287 A295740 A270271 * A327760 A054213 A288288
KEYWORD
nonn,base,fini,full
AUTHOR
Lekraj Beedassy, Jun 07 2004
EXTENSIONS
Edited by N. J. A. Sloane, Apr 13 2009
a(5) corrected by Emilio Martín, Jul 28 2022
STATUS
approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified March 18 22:56 EDT 2024. Contains 370952 sequences. (Running on oeis4.)