A043532 Number of distinct base-5 digits of n.

1, 1, 1, 1, 2, 1, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 1, 2, 2, 3, 3, 3, 2, 1, 2, 2, 2, 3, 2, 2, 3, 3, 3, 2, 3, 2, 3, 3, 2, 3, 3, 2, 2, 3, 2, 3, 3, 3, 2, 2, 3, 3, 2, 2, 1, 2, 2, 3, 3, 2, 2, 3, 3, 3, 2, 3, 2, 2, 3, 3, 2, 3, 3, 2, 3, 2, 3, 3, 3, 2, 2, 3, 2

Offset

1,5

Links

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

Mathematica

f[n_]:=Length[Select[DigitCount[n, 5], #!=0&]]; Array[f, 100] (* Harvey P. Dale, May 11 2011 *)

Crossrefs

Cf. A007091.

Sequence in context: A194823 A098396 A297773 * A043557 A055027 A214574

Adjacent sequences: A043529 A043530 A043531 * A043533 A043534 A043535

Keyword

nonn,base

Author

Clark Kimberling

Status

approved