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A043543 Number of distinct base 16 digits of n. 1
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,16

LINKS

Table of n, a(n) for n=1..90.

MATHEMATICA

Table[Length[Union[IntegerDigits[n, 16]]], {n, 90}] (* Harvey P. Dale, Jul 23 2013 *)

CROSSREFS

Sequence in context: A043567 A297784 A043568 * A237684 A130634 A274828

Adjacent sequences:  A043540 A043541 A043542 * A043544 A043545 A043546

KEYWORD

nonn,base

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified December 5 04:13 EST 2020. Contains 338943 sequences. (Running on oeis4.)