id:A054023 - OEIS Search Results

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Chowla function of n is not divisible by the number of divisors of n.

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	OFFSET	`1,1`
	COMMENT	`Chowla's function (A048050) = sum of divisors of n except 1 and n.`
	MAPLE	`with(numtheory):` [seq(`if`((sigma(i)-i-1) mod tau(i) <> 0, i, print( )), i=1..1000)];
	CROSSREFS	`Complement is A054022 Cf. A000005, A048050, A054014.` `Sequence in context: A078941 A078942 A039767 this_sequence A032583 A063127 A103517` `Adjacent sequences: A054020 A054021 A054022 this_sequence A054024 A054025 A054026`
	KEYWORD	`nonn`
	AUTHOR	`Asher Auel (asher.auel(AT)reed.edu) Jan 19, 2000`

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Last modified August 29 17:54 EDT 2008. Contains 143238 sequences.

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