id:A054013 - OEIS Search Results

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Chowla function of n read modulo n.

+0
7

0, 0, 0, 2, 0, 5, 0, 6, 3, 7, 0, 3, 0, 9, 8, 14, 0, 2, 0, 1, 10, 13, 0, 11, 5, 15, 12, 27, 0, 11, 0, 30, 14, 19, 12, 18, 0, 21, 16, 9, 0, 11, 0, 39, 32, 25, 0, 27, 7, 42, 20, 45, 0, 11, 16, 7, 22, 31, 0, 47, 0, 33, 40, 62, 18, 11, 0, 57, 26, 3, 0, 50, 0, 39, 48, 63, 18, 11, 0, 25, 39, 43, 0 (list; graph; listen)

	OFFSET	`1,4`
	COMMENT	`Chowla's function (A048050) = sum of divisors of n except 1 and n.`
	FORMULA	`a(n) = A048050(n) mod n`
	MAPLE	`with(numtheory): [seq((sigma(i) - i - 1) mod i, i=2..100)];`
	CROSSREFS	`Cf. A048050, A054014, A054015.` `Sequence in context: A019962 A086131 A104755 this_sequence A048050 A078153 A104035` `Adjacent sequences: A054010 A054011 A054012 this_sequence A054014 A054015 A054016`
	KEYWORD	`nonn`
	AUTHOR	`Asher Auel (asher.auel(AT)reed.edu) Jan 17, 2000`

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Last modified November 30 13:13 EST 2009. Contains 167758 sequences.

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