A008885 - OEIS

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A008885

Aliquot sequence starting at 30.

30, 42, 54, 66, 78, 90, 144, 259, 45, 33, 15, 9, 4, 3, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,1`
	REFERENCES	`R. K. Guy, Unsolved Problems in Number Theory, B6.`
	LINKS	`Christophe CLAVIER, Aliquot Sequences`
	MAPLE	`f := proc(n) option remember; if n = 0 then 30; else sigma(f(n-1))-f(n-1); fi; end:`
	CROSSREFS	`Sequence in context: A110849 A074696 A127663 * A097036 A090790 A090800` `Adjacent sequences: A008882 A008883 A008884 * A008886 A008887 A008888`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`

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Last modified February 13 19:04 EST 2012. Contains 205535 sequences.