id:A081604 - OEIS Search Results

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String-length of ternary representation of n.

+0
17

1, 1, 1, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5 (list; graph; listen)

	OFFSET	`0,4`
	COMMENT	`a(n)=A081602(n)+A062756(n)+A081603(n);` `for n>0: a(n)=A062153(n)+1.` `0<=A134021(n)-a(n)<=1; a(A134025(n))=A134021(A134025(n)); a(A134026(n))=A134021(A134026(n))-1. - Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Oct 19 2007`
	LINKS	`R. Zumkeller, Table of n, a(n) for n = 0..10000` `Eric Weisstein's World of Mathematics, Ternary.`
	FORMULA	`a(n+1)=-sum(k=1..n,mu(3k)floor(n/k)) [From Benoit Cloitre (benoit7848c(AT)orange.fr), Oct 21 2009]`
	CROSSREFS	`Cf. A007089.` `Cf. A080342. [From R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Sep 17 2008]` `Sequence in context: A095139 A109038 A080342 this_sequence A123119 A099396 A126235` `Adjacent sequences: A081601 A081602 A081603 this_sequence A081605 A081606 A081607`
	KEYWORD	`nonn,base`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Mar 23 2003`

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Last modified November 23 17:09 EST 2009. Contains 167438 sequences.

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