id:A090617 - OEIS Search Results

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Highest power of 8 dividing n!.

+0
6

0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 5, 5, 5, 5, 6, 6, 6, 6, 7, 7, 7, 7, 8, 8, 8, 8, 10, 10, 10, 10, 11, 11, 11, 11, 12, 12, 13, 13, 13, 13, 14, 14, 15, 15, 15, 15, 16, 16, 16, 16, 17, 17, 18, 18, 18, 18, 19, 19, 21, 21, 21, 21, 22, 22, 22, 22, 23, 23, 23, 23, 24, 24, 24, 24 (list; graph; listen)

	OFFSET	`0,9`
	FORMULA	`a(n) =A090622(n, 8) =[A011371(n)/3] =[([n/2]+[n/4]+[n/8]+[n/16]+...)/3].`
	EXAMPLE	`a(8)=2 since 8!=40320=8^2*630.`
	CROSSREFS	`Cf. A011371, A054861, A090616, A027868, A054896.` `Sequence in context: A070548 A132011 A054893 this_sequence A053693 A068063 A087181` `Adjacent sequences: A090614 A090615 A090616 this_sequence A090618 A090619 A090620`
	KEYWORD	`nonn`
	AUTHOR	`Henry Bottomley (se16(AT)btinternet.com), Dec 06 2003`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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