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A079790 a(n) = number of m <= n which can be obtained by deleting digits from n. 1
1, 1, 1, 1, 1, 1, 1, 1, 1, 3, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 4, 5, 6, 6, 6, 6 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,10

COMMENTS

a(n) = A120004(n) for n <= 100. a(101) = #{0, 1, 10, 11, 101} = 5; a(102) = #{0, 1, 2, 10, 12, 102} = 6. - Reinhard Zumkeller, Jun 15 2006

LINKS

Table of n, a(n) for n=1..105.

EXAMPLE

a(124)=7 and the numbers are 1,2,4,12,14,24,124.

CROSSREFS

Sequence in context: A080428 A343886 A120004 * A098726 A065801 A265705

Adjacent sequences:  A079787 A079788 A079789 * A079791 A079792 A079793

KEYWORD

base,easy,nonn

AUTHOR

Amarnath Murthy, Feb 04 2003

EXTENSIONS

More terms from Antonio G. Astudillo (afg_astudillo(AT)lycos.com), Apr 19 2003

Corrected and extended by Reinhard Zumkeller, Jun 15 2006

STATUS

approved

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Last modified September 19 08:05 EDT 2021. Contains 347556 sequences. (Running on oeis4.)