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A094224
Number of digits in the least n-transposable number.
2
18, 28, 6, 6, 58, 22, 13, 44
OFFSET
2,1
COMMENTS
A k-transposable number, where 2<=k<=9, is one which is equal to k times the number whose digits are a cyclic permutation of its leftmost digit to the right.
REFERENCES
P. Tougne, "Jeux Mathématiques", Prob. 8, pp. 104 and 107 Aug. 1982 issue of Pour La Science (French edition of 'Scientific American'), Paris.
EXAMPLE
We have the a(4)=6-digit 4-transposable number 410256=4*102564, and the a(5)=6-digit 5-transposable number 714285=5*142857.
CROSSREFS
Cf. A092697 (value of the least n-transposable number).
Sequence in context: A349485 A166630 A154920 * A128858 A141782 A093648
KEYWORD
fini,full,nonn,base
AUTHOR
Lekraj Beedassy, May 28 2004
EXTENSIONS
Incorrect comments and program removed by Alois P. Heinz, Feb 18 2020
STATUS
approved