A111407 - OEIS

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A111407

f(f(n+1)-f(f(n), where f(m) = tau(m) = A000005(m).

1, 1, 0, 0, 0, 1, -1, 1, -1, 1, -1, 2, -2, 1, 0, -1, 0, 2, -2, 2, -1, 0, -1, 2, -2, 1, 0, 1, -2, 2, -2, 2, -1, 0, 0, 0, -1, 1, 0, 1, -2, 2, -2, 2, 0, -1, -1, 2, -2, 2, -1, 1, -2, 2, -1, 1, -1, 0, -1, 4, -4, 1, 1, -2, 1, 1, -2, 2, -1, 1, -2, 4, -4, 1, 1, 0, -1, 1, -2, 2, -2, 1, -1, 4, -3, 0, 0, 1, -2, 4, -3, 1, -1, 0, 0, 3, -4, 2, 0, -1, -1 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,12`
	CROSSREFS	`Sequence in context: A122865 A074080 A179769 * A084440 A179287 A016372` `Adjacent sequences: A111404 A111405 A111406 * A111408 A111409 A111410`
	KEYWORD	`sign`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com), Nov 12 2005`

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Last modified February 16 20:38 EST 2012. Contains 205962 sequences.