id:A079690 - OEIS Search Results

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Number of 5's in n!.

+0
14

0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 1, 1, 0, 1, 0, 2, 0, 3, 3, 2, 2, 2, 4, 3, 1, 2, 2, 2, 2, 5, 1, 2, 5, 6, 5, 7, 5, 5, 8, 5, 6, 5, 2, 4, 7, 3, 3, 11, 5, 6, 5, 5, 3, 7, 6, 4, 7, 10, 3, 7, 8, 5, 10, 7, 3, 7, 13, 9, 10, 6, 9, 7, 14, 13, 1, 12, 8, 13, 13, 11, 10, 10, 12, 17, 17, 14, 15, 12 (list; graph; listen)

	OFFSET	`0,18`
	LINKS	`Index entries for sequences related to factorial numbers.`
	FORMULA	`a(n) = A034886(n) - (A027869(n) + A079680(n) + A079714(n) + A079684(n) + A079688(n) + A079691(n) + A079692(n) + A079693(n) + A079694(n)). - Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Jan 27 2008`
	CROSSREFS	`Cf. A027869, A079714.` `Cf. A000142, A137579, A137580.` `Sequence in context: A131963 A130538 A078659 this_sequence A040076 A019269 A035155` `Adjacent sequences: A079687 A079688 A079689 this_sequence A079691 A079692 A079693`
	KEYWORD	`easy,nonn`
	AUTHOR	`Cino Hilliard (hillcino368(AT)gmail.com), Jan 31 2003`

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Last modified July 25 07:41 EDT 2008. Contains 142293 sequences.

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