id:A099545 - OEIS Search Results

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Odd part of n modulo 4.

+0
9

1, 1, 3, 1, 1, 3, 3, 1, 1, 1, 3, 3, 1, 3, 3, 1, 1, 1, 3, 1, 1, 3, 3, 3, 1, 1, 3, 3, 1, 3, 3, 1, 1, 1, 3, 1, 1, 3, 3, 1, 1, 1, 3, 3, 1, 3, 3, 3, 1, 1, 3, 1, 1, 3, 3, 3, 1, 1, 3, 3, 1, 3, 3, 1, 1, 1, 3, 1, 1, 3, 3, 1, 1, 1, 3, 3, 1, 3, 3, 1, 1, 1, 3, 1, 1, 3, 3, 3, 1, 1, 3, 3, 1, 3, 3, 3, 1, 1, 3, 1, 1, 3 (list; graph; listen)

	OFFSET	`1,3`
	COMMENT	`The terms of this sequence are the even-indexed terms of A112658. - Alexandre Wajnberg (alexandre.wajnberg(AT)skynet.be), Jan 02 2006` `Fractal sequence: odd terms are 1, 3, 1, 3,...; the even terms are the sequence itself: a(n)=a(2n)=a(4n)=a(8n)=a(16n)=... - Alexandre Wajnberg (alexandre.wajnberg(AT)skynet.be), Jan 02 2006` `(A099545 - 1 ) / 2 = A014707, the regular paper-folding (or dragon curve) sequence. - Alexandre Wajnberg (alexandre.wajnberg(AT)skynet.be), Jan 02 2006`
	CROSSREFS	`Equals A010873( A000265(n) ) and 2 * A038189(n) + 1.` `Cf. A099544, A099546, A099547, A099548, A099549, A099550, A099551.` `Adjacent sequences: A099542 A099543 A099544 this_sequence A099546 A099547 A099548` `Sequence in context: A023142 A143159 A033989 this_sequence A132429 A046540 A123191`
	KEYWORD	`nonn`
	AUTHOR	`Ralf Stephan, Oct 23 2004`

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Last modified October 9 14:06 EDT 2008. Contains 144831 sequences.

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