A138006 - OEIS

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A138006

Length of all the nontrivial cycles of the Ducci map for n in A138004.

3, 15, 7, 341, 819, 9709, 2047, 475107, 31, 3233097, 5461, 8388607, 3556769739, 31675383749, 65498251203, 575525617597, 34359738367, 549755813887, 182518930210733, 2047, 37905296863701641, 2251799813685247 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,1`
	COMMENTS	`It appears that the maximum possible cycle length is n*(2^((n-1)/2)-1).`
	CROSSREFS	`Cf. A135546.` `Sequence in context: A102777 A102531 A135546 * A145179 A099476 A063628` `Adjacent sequences: A138003 A138004 A138005 * A138007 A138008 A138009`
	KEYWORD	`nonn`
	AUTHOR	`T. D. Noe (noe(AT)sspectra.com), Feb 26 2008`

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Last modified February 16 10:07 EST 2012. Contains 205904 sequences.