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A159863
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a(3)(baseN) = least number m such that the quotient m/3 is obtained merely by shifting the leftmost digit (MSD) of m to the right end (LSD), and the multiple 3m by shifting the LSD of m to the MSD, in order of increasing number base, N.
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1
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OFFSET
| 4,1
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COMMENTS
| 1001b2, 10b3 and 51b7do not triple by specified shift and are not included although they allow MSD->LSD shift to make m/3. No 2-digit number qualifies because the shift is an exchange (e.g., 51b7/3=15b7). 2076b11 is the highest order number of this type to be represented without letter digits
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LINKS
| W. A. Hoffman III, Algorithm to compute terms.
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EXAMPLE
| 2076b11/3=762b11 (2745/3=915) and 3*2076b11=6207b11 (3*2745=8235)
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CROSSREFS
| Cf. A023060, A159774.
See A160116 for these numbers written in base 10.
Sequence in context: A058042 A161786 A157711 * A054037 A023066 A172810
Adjacent sequences: A159860 A159861 A159862 * A159864 A159865 A159866
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KEYWORD
| base,nonn,fini,full
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AUTHOR
| William A. Hoffman III (whoff(AT)robill.com), Apr 24 2009
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EXTENSIONS
| Edited by Ray Chandler (rayjchandler(AT)sbcglobal.net), May 02 2009
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