id:A116041 - OEIS Search Results

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n+phi(n)+phi(phi(n)) is a fourh power.

+0
4

10, 160, 301, 752, 912, 1033, 2560, 2801, 6277, 11852, 12032, 12661, 14592, 27297, 35809, 38576, 40960, 73872, 96688, 123601, 133904, 151312, 183589, 189632, 192512, 233472, 561168, 578448, 617216, 629212, 655360, 714133, 722701 (list; graph; listen)

	OFFSET	`1,1`
	EXAMPLE	`6277+phi(6277)+phi(phi(6277)) = 14641 = 11^4.`
	CROSSREFS	`Cf. A116040, A116042, A116043.` `Sequence in context: A087603 A129460 A087961 this_sequence A106261 A112125 A090374` `Adjacent sequences: A116038 A116039 A116040 this_sequence A116042 A116043 A116044`
	KEYWORD	`nonn`
	AUTHOR	`Giovanni Resta (g.resta(AT)iit.cnr.it), Feb 13 2006`

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Last modified November 18 20:14 EST 2008. Contains 147244 sequences.

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