id:A091921 - OEIS Search Results

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A091921

Sum of odd proper distinct prime divisors of n. That is, the sum of odd distinct prime divisors of n that are less than n.

+0
1

0, 0, 0, 0, 0, 3, 0, 0, 3, 5, 0, 3, 0, 7, 8, 0, 0, 3, 0, 5, 10, 11, 0, 3, 5, 13, 3, 7, 0, 8, 0, 0, 14, 17, 12, 3, 0, 19, 16, 5, 0, 10, 0, 11, 8, 23, 0, 3, 7, 5, 20, 13, 0, 3, 16, 7, 22, 29, 0, 8, 0, 31, 10, 0, 18, 14, 0, 17, 26, 12, 0, 3, 0, 37, 8, 19, 18, 16, 0, 5, 3, 41, 0, 10, 22, 43, 32, 11, 0 (list; graph; listen)

	OFFSET	`1,6`
	EXAMPLE	`The sum of odd proper distinct prime divisors of 15 is 8=3+5.`
	CROSSREFS	`Cf. A091979, A001227.` `Adjacent sequences: A091918 A091919 A091920 this_sequence A091922 A091923 A091924` `Sequence in context: A063691 A075874 A111787 this_sequence A037285 A005082 A050452`
	KEYWORD	`easy,nonn`
	AUTHOR	`Mohammad K. Azarian (azarian(AT)evansville.edu), Mar 16 2004`

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Last modified October 10 20:39 EDT 2008. Contains 144831 sequences.

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