A089693 - OEIS

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A089693

Numbers n such that phi(n)=2^bigomega(n).

1, 3, 10, 20, 30, 40, 60, 80, 120, 160, 240, 320, 480, 640, 960, 1280, 1920, 2560, 3840, 5120, 7680, 10240, 15360, 20480, 30720, 40960, 61440, 81920 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,2`
	CROSSREFS	`Cf. A000010, A061142.` `Sequence in context: A056789 A174476 A098645 * A194116 A005997 A081205` `Adjacent sequences: A089690 A089691 A089692 * A089694 A089695 A089696`
	KEYWORD	`nonn`
	AUTHOR	`Benoit Cloitre (benoit7848c(AT)orange.fr), Jan 06 2004`

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Last modified February 17 21:13 EST 2012. Contains 206085 sequences.