A065251 - OEIS

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A065251

Simple quasi-periodic sequence consisting of the terms 1, 0 and -1.

1, 1, 0, 1, 0, -1, 1, 1, 0, -1, 1, 0, -1, 1, 0, 1, 0, -1, 1, 0, -1, 1, 0, -1, 1, 0, -1, 1, 0, -1, 1, 1, 0, -1, 1, 0, -1, 1, 0, -1, 1, 0, -1, 1, 0, -1, 1, 0, -1, 1, 0, -1, 1, 0, -1, 1, 0, -1, 1, 0, -1, 1, 0, 1, 0, -1, 1, 0, -1, 1, 0, -1, 1, 0, -1, 1, 0, -1, 1, 0, -1, 1, 0, -1, 1, 0, -1, 1, 0, -1, 1, 0, -1, 1, 0, -1, 1, 0, -1, 1, 0, -1, 1, 0, -1, 1, 0, -1, 1, 0 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,1`
	LINKS	`A. Karttunen, Conjecture regarding A065249 and A065251`
	FORMULA	`a(n) = 1-((n-2^[log_2(n)]) mod 3)`
	MAPLE	`[seq(A065251(j), j=1..120)]; A065251 := n -> 1-((n-2^floor_log_2(n)) mod 3);`
	CROSSREFS	`The same sequence modulo 3: A065252. Cf. A065249.` `Sequence in context: A065535 A093719 A153778 * A039982 A131372 A098457` `Adjacent sequences: A065248 A065249 A065250 * A065252 A065253 A065254`
	KEYWORD	`sign`
	AUTHOR	`Antti Karttunen Oct 25 2001`

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Last modified February 14 23:53 EST 2012. Contains 205689 sequences.