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A084688
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2^n uses only distinct decimal digits.
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0
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0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 20, 29
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,3
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COMMENTS
| There are exactly 18 numbers such that 2^n uses only distinct digits.
Subsequence of A052060. [From R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Sep 17 2008]
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EXAMPLE
| 29 is (the last!) term because 2^29=536870912 uses all 10 distinct digits.
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CROSSREFS
| Sequence in context: A052057 A005496 A052060 * A194898 A023769 A023796
Adjacent sequences: A084685 A084686 A084687 * A084689 A084690 A084691
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KEYWORD
| fini,nonn,full,base
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AUTHOR
| Zak Seidov (zakseidov(AT)yahoo.com), Jul 01 2003
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