id:A067261 - OEIS Search Results

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Numbers n such that sigma(n+1)=3*phi(n).

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1, 4, 5, 9, 10, 21, 32, 34, 45, 55, 65, 68, 70, 129, 153, 160, 176, 183, 203, 245, 340, 370, 407, 441, 550, 580, 635, 741, 765, 806, 845, 965, 1011, 1025, 1089, 1166, 1247, 1292, 1505, 1508, 1840, 2271, 2402, 2584, 2590, 3285, 3604, 4065, 4223, 4832, 5339 (list; graph; listen)

	OFFSET	`1,2`
	CROSSREFS	`Sequence in context: A059582 A034809 A096808 this_sequence A001161 A099539 A110603` `Adjacent sequences: A067258 A067259 A067260 this_sequence A067262 A067263 A067264`
	KEYWORD	`nonn`
	AUTHOR	`Benoit Cloitre (benoit7848c(AT)orange.fr), Feb 21 2002`

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.

AT&T Labs Research