id:A058825 - OEIS Search Results

Search: id:A058825

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Numbers which are both totients and cototients.

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1, 2, 4, 6, 8, 12, 16, 18, 20, 22, 24, 28, 30, 32, 36, 40, 42, 44, 46, 48, 54, 56, 60, 64, 66, 70, 72, 78, 80, 82, 84, 88, 92, 96, 102, 104, 106, 108, 110, 112, 120, 126, 128, 132, 136, 138, 140, 144, 148, 150, 156, 160, 162, 164, 166, 168, 176, 178, 180, 184, 190 (list; graph; listen)

	OFFSET	`0,2`
	FORMULA	`Intersection[A002202, A051953]`
	EXAMPLE	`24 is here because 24=Phi(72)=44-Phi(44)=44-20=cototient(44)`
	CROSSREFS	`Cf. A000010, A051953, A005277, A005278, A002020, A058763.` `Sequence in context: A078327 A094109 A090404 this_sequence A087086 A103288 A125225` `Adjacent sequences: A058822 A058823 A058824 this_sequence A058826 A058827 A058828`
	KEYWORD	`nonn`
	AUTHOR	`Labos E. (labos(AT)ana.sote.hu), Jan 04 2001`

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Last modified November 25 14:49 EST 2009. Contains 167514 sequences.

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