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A061901 Number of distinct numbers that can be formed from the digits of n. 0
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 3, 2, 4, 4, 4, 4, 4, 4, 4, 4, 3, 4, 2, 4, 4, 4, 4, 4, 4, 4, 3, 4, 4, 2, 4, 4, 4, 4, 4, 4, 3, 4, 4, 4, 2, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4, 2, 4, 4, 4, 4, 3, 4, 4, 4, 4, 4, 2, 4, 4, 4, 3, 4, 4, 4, 4, 4, 4, 2, 4, 4, 3, 4, 4, 4, 4, 4, 4, 4, 2, 4, 3, 4, 4, 4, 4, 4, 4, 4, 4, 2, 4, 6, 11, 11 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,11

LINKS

Table of n, a(n) for n=0..103.

EXAMPLE

The digits of 13 can form 1, 3, 13 and 31. The digits of 201 can form 0, 1, 2, 10, 12, 20, 21, 102, 120, 210 and 201. Thus a(13) = 4, a(201) = 11.

CROSSREFS

Cf. A061487, A061497, A061499, A061500.

Sequence in context: A258242 A287869 A134749 * A322349 A322348 A321232

Adjacent sequences:  A061898 A061899 A061900 * A061902 A061903 A061904

KEYWORD

nonn,base

AUTHOR

Asher Auel (asher.auel(AT)reed.edu), May 05 2001

STATUS

approved

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Last modified April 14 00:42 EDT 2021. Contains 342941 sequences. (Running on oeis4.)