id:A099633 - OEIS Search Results

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Numbers n such that (phi[n-2]+phi[n+2])/2 = phi[n]. 2-phi/balanced numbers. See also A066167.

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2, 5, 10, 14, 20, 25, 50, 80, 154, 200, 434, 520, 610, 815, 1205, 1345, 2680, 3200, 3560, 4669, 7330, 9290, 10130, 11705, 17630, 24410, 25090, 33385, 34205, 39754, 39785, 40870, 48470, 55979, 59090, 73165, 75470, 78035, 95990, 107680, 115685, 120230 (list; graph; listen)

	OFFSET	`1,1`
	EXAMPLE	`n=154,phi[152]=72,phi[156]=48,phi[154]=60`
	CROSSREFS	`Cf. A066167, A000010, A099631, A099632.` `Adjacent sequences: A099630 A099631 A099632 this_sequence A099634 A099635 A099636` `Sequence in context: A053353 A099792 A115757 this_sequence A082745 A064955 A101725`
	KEYWORD	`nonn`
	AUTHOR	`Labos E. (labos(AT)ana.sote.hu), Oct 27 2004`

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Last modified October 9 14:06 EDT 2008. Contains 144831 sequences.

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