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 A084689 3^n uses only distinct decimal digits. 0
 0, 1, 2, 3, 4, 5, 6, 7, 9 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,3 COMMENTS There are exactly 9 such n's that 3^n uses only distinct digits (in base 10). LINKS Table of n, a(n) for n=1..9. EXAMPLE 9 is (the last!) term because 3^9=19683 uses only distinct digits. MATHEMATICA Select[Range[0, 10], Max[DigitCount[3^#]]<2&] (* Harvey P. Dale, Jan 24 2021 *) CROSSREFS Sequence in context: A243369 A228052 A308072 * A021085 A031006 A031978 Adjacent sequences: A084686 A084687 A084688 * A084690 A084691 A084692 KEYWORD fini,nonn,full,base AUTHOR Zak Seidov, Jul 01 2003 STATUS approved

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Last modified May 23 22:02 EDT 2024. Contains 372765 sequences. (Running on oeis4.)