A008886 - OEIS

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A008886

Aliquot sequence starting at 42.

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, 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 42; else sigma(f(n-1))-f(n-1); fi; end:`
	CROSSREFS	`Sequence in context: A156394 A083244 A125009 * A029695 A143226 A043136` `Adjacent sequences: A008883 A008884 A008885 * A008887 A008888 A008889`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`

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Last modified February 17 23:31 EST 2012. Contains 206085 sequences.