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A079694 Number of 9's in n!. 13
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 1, 0, 1, 0, 2, 1, 0, 0, 1, 3, 0, 1, 2, 2, 1, 1, 0, 4, 2, 1, 2, 2, 5, 3, 7, 4, 1, 5, 5, 0, 4, 2, 2, 4, 6, 7, 3, 2, 2, 3, 3, 6, 4, 6, 6, 5, 6, 8, 6, 7, 6, 7, 5, 6, 6, 8, 8, 7, 12, 5, 7, 5, 7, 10, 12, 7, 6, 9, 5, 12, 13, 12, 10, 9, 9, 10, 13, 18, 14, 12, 7, 7, 7, 15, 20, 16 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,12

LINKS

Table of n, a(n) for n=0..97.

Index entries for sequences related to factorial numbers.

FORMULA

a(n) = A034886(n) - (A027869(n) + A079680(n) + A079714(n) + A079684(n) + A079688(n) + A079690(n) + A079691(n) + A079692(n) + A079693(n)). - Reinhard Zumkeller, Jan 27 2008

MATHEMATICA

DigitCount[#, 10, 9]&/@(Range[0, 100]!) (* Harvey P. Dale, Dec 12 2013 *)

CROSSREFS

Cf. A027869, A079714.

Cf. A000142, A137579, A137580.

Sequence in context: A116422 A130161 A115672 * A068906 A162514 A166347

Adjacent sequences:  A079691 A079692 A079693 * A079695 A079696 A079697

KEYWORD

easy,nonn

AUTHOR

Cino Hilliard, Jan 31 2003

STATUS

approved

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Last modified March 25 15:14 EDT 2017. Contains 284082 sequences.