id:A068005 - OEIS Search Results

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Numbers n such that n*sigma(n)>phi(n)*prime(n).

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2, 3, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 28, 30, 36, 40, 42, 48, 50, 54, 56, 60, 66, 70, 72, 78, 80, 84, 90, 96, 100, 102, 108, 114, 120, 126, 132, 138, 140, 144, 150, 156, 160, 162, 168, 174, 180, 186, 192, 198, 204, 210, 216, 220, 222, 228, 234, 240, 252, 264 (list; graph; listen)

	OFFSET	`1,1`
	CROSSREFS	`Sequence in context: A068670 A084925 A045718 this_sequence A055721 A064376 A068578` `Adjacent sequences: A068002 A068003 A068004 this_sequence A068006 A068007 A068008`
	KEYWORD	`easy,nonn`
	AUTHOR	`Benoit Cloitre (benoit7848c(AT)orange.fr), Mar 22 2002`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

AT&T Labs Research