A084689 3^n uses only distinct decimal digits.

0, 1, 2, 3, 4, 5, 6, 7, 9

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 * A374323 A021085 A031006

Adjacent sequences: A084686 A084687 A084688 * A084690 A084691 A084692

Keyword

fini,nonn,full,base

Author

Zak Seidov, Jul 01 2003

Status

approved