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A079684 Number of 3's in n!. 13
0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 2, 0, 1, 2, 1, 1, 0, 0, 1, 5, 3, 2, 1, 3, 3, 2, 1, 7, 2, 3, 7, 4, 5, 1, 5, 3, 5, 3, 9, 3, 5, 1, 5, 7, 6, 6, 6, 4, 9, 8, 5, 3, 4, 5, 8, 8, 4, 8, 5, 9, 7, 7, 6, 9, 10, 5, 7, 8, 6, 10, 7, 11, 7, 9, 10, 8, 8, 15, 10, 13, 8, 10, 13, 8, 12, 10, 6, 18, 12, 12, 15, 9, 12 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,16

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) + A079688(n) + A079690(n) + A079691(n) + A079692(n) + A079693(n) + A079694(n)). - Reinhard Zumkeller, Jan 27 2008

MATHEMATICA

DigitCount[Range[0, 100]!, 10, 3] (* Harvey P. Dale, Jul 04 2014 *)

CROSSREFS

Cf. A079714.

Cf. A000142, A137579, A137580.

Sequence in context: A219026 A085097 A117997 * A033761 A033805 A033797

Adjacent sequences:  A079681 A079682 A079683 * A079685 A079686 A079687

KEYWORD

easy,nonn

AUTHOR

Cino Hilliard, Jan 31 2003

EXTENSIONS

Corrected by Jason Earls, Jul 06 2003

STATUS

approved

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Last modified August 24 18:12 EDT 2019. Contains 326295 sequences. (Running on oeis4.)