id:A067064 - OEIS Search Results

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Numbers n such that sigma(sigma(sigma(n)))) == 0 (mod sigma(n)).

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1, 3, 7, 8, 14, 15, 20, 23, 24, 26, 38, 41, 44, 59, 60, 65, 78, 83, 92, 114, 123, 132, 133, 135, 140, 143, 158, 167, 168, 177, 182, 188, 195, 203, 204, 209, 220, 224, 239, 246, 248, 249, 266, 284, 285, 286, 287, 297, 299, 334, 378, 381, 395, 413, 415, 420, 437 (list; graph; listen)

	OFFSET	`1,2`
	CROSSREFS	`Sequence in context: A002312 A106474 A127441 this_sequence A093722 A002381 A131559` `Adjacent sequences: A067061 A067062 A067063 this_sequence A067065 A067066 A067067`
	KEYWORD	`nonn`
	AUTHOR	`Benoit Cloitre (benoit7848c(AT)orange.fr), Feb 17 2002`

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Last modified November 29 12:46 EST 2009. Contains 167659 sequences.

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