id:A104320 - OEIS Search Results

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Number of zeros in ternary representation of 2^n.

+0
4

0, 0, 0, 0, 0, 1, 1, 1, 2, 2, 1, 1, 1, 4, 1, 0, 4, 2, 3, 3, 3, 3, 3, 7, 7, 9, 5, 6, 6, 4, 4, 3, 5, 6, 7, 9, 9, 10, 6, 6, 9, 9, 8, 9, 8, 7, 13, 12, 13, 9, 5, 9, 8, 6, 16, 13, 9, 10, 11, 11, 7, 14, 13, 13, 9, 12, 14, 15, 15, 11, 11, 17, 15, 19, 14, 19, 12, 18, 15, 11, 10, 16, 15, 14, 14, 13, 17, 14 (list; graph; listen)

	OFFSET	`0,9`
	COMMENT	`a(n) = A081602(A000079(n));` `a(A104321(n))=n and a(m)<>n for m<A104321(n);` `njas conjectures a(n)>0 for n>15, see A102483.`
	EXAMPLE	`n=13: 2^13=8192 -> '102020102', a(13) = 4.`
	CROSSREFS	`Cf. A004642, A007089, A081602.` `Adjacent sequences: A104317 A104318 A104319 this_sequence A104321 A104322 A104323` `Sequence in context: A123682 A134513 A140751 this_sequence A128706 A090737 A072550`
	KEYWORD	`nonn`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Mar 01 2005`

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Last modified October 16 00:31 EDT 2008. Contains 145098 sequences.

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