id:A039773 - OEIS Search Results

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phi(n) is equal to the sum of prime factors and exponents of n-1.

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5, 34, 66, 130, 490, 18130 (list; graph; listen)

	OFFSET	`1,1`
	EXAMPLE	`phi(34)=16, 33=3^1*11^1, 3+1+11+1=16.`
	CROSSREFS	`Cf. A000010, A008474.` `Adjacent sequences: A039770 A039771 A039772 this_sequence A039774 A039775 A039776` `Sequence in context: A140424 A124936 A068560 this_sequence A135973 A034224 A121831`
	KEYWORD	`nonn`
	AUTHOR	`Olivier Gerard (olivier.gerard(AT)gmail.com)`
	EXTENSIONS	`Next term if it exists is >= 5*10^7 - Naohiro Nomoto (6284968128(AT)geocities.co.jp), Jun 24 2001.`

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Last modified October 11 13:47 EDT 2008. Contains 144830 sequences.