id:A070286 - OEIS Search Results

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Numbers n such that the equation sigma(sigma(x))=n has solutions.

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3

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	OFFSET	`1,2`
	COMMENT	`Complement of A162923. [From Jaroslav Krizek (jaroslav.krizek(AT)atlas.cz), Jul 19 2009]`
	CROSSREFS	`Sequence in context: A061932 A060833 A162967 this_sequence A047536 A093494 A051027` `Adjacent sequences: A070283 A070284 A070285 this_sequence A070287 A070288 A070289`
	KEYWORD	`easy,nonn`
	AUTHOR	`Benoit Cloitre (benoit7848c(AT)orange.fr), May 10 2002`

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Last modified December 11 12:57 EST 2009. Contains 170656 sequences.

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