id:A066887 - OEIS Search Results

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Numbers n such that OMEGA(phi(n))=OMEGA(n) where phi is the Euler totient function and OMEGA(x) is the number of repeated prime factors in x.

+0
1

3, 9, 10, 14, 20, 22, 27, 28, 30, 40, 42, 44, 46, 50, 56, 60, 66, 80, 81, 84, 88, 90, 92, 94, 98, 100, 112, 118, 120, 126, 132, 138, 150, 160, 166, 168, 176, 180, 184, 188, 196, 198, 200, 214, 224, 236, 240, 242, 243, 250, 252, 264, 270, 276, 282, 294, 300, 320 (list; graph; listen)

	OFFSET	`1,1`
	CROSSREFS	`Sequence in context: A108865 A036119 A050852 this_sequence A030608 A118515 A138923` `Adjacent sequences: A066884 A066885 A066886 this_sequence A066888 A066889 A066890`
	KEYWORD	`nonn`
	AUTHOR	`Benoit Cloitre (benoit7848c(AT)orange.fr), Jan 26 2002`

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Last modified December 8 08:31 EST 2009. Contains 170430 sequences.

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