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A079688 Number of 4's in n!. 13
0, 0, 0, 0, 1, 0, 0, 1, 1, 0, 0, 0, 1, 0, 0, 1, 0, 1, 1, 2, 2, 3, 1, 2, 4, 2, 3, 2, 4, 3, 1, 1, 0, 3, 4, 3, 3, 3, 3, 3, 4, 3, 6, 2, 5, 4, 3, 3, 4, 3, 7, 3, 5, 7, 6, 6, 13, 8, 8, 7, 10, 4, 4, 8, 10, 8, 16, 10, 7, 13, 6, 5, 10, 7, 7, 13, 11, 11, 10, 4, 13, 13, 16, 10, 8, 15, 14, 10, 18, 6, 13, 12, 17, 12 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,20

LINKS

Table of n, a(n) for n=0..93.

Index entries for sequences related to factorial numbers.

FORMULA

a(n) = A034886(n) - (A027869(n) + A079680(n) + A079714(n) + A079684(n) + A079690(n) + A079691(n) + A079692(n) + A079693(n) + A079694(n)). - Reinhard Zumkeller, Jan 27 2008

MATHEMATICA

DigitCount[#, 10, 4]&/@(Range[0, 100]!) (* Harvey P. Dale, Jul 30 2015 *)

CROSSREFS

Cf. A079714.

Cf. A000142, A137579, A137580.

Sequence in context: A115323 A089282 A308640 * A261789 A282972 A088598

Adjacent sequences:  A079685 A079686 A079687 * A079689 A079690 A079691

KEYWORD

easy,nonn

AUTHOR

Cino Hilliard, Jan 31 2003

STATUS

approved

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Last modified August 26 05:23 EDT 2019. Contains 326328 sequences. (Running on oeis4.)