id:A109607 - OEIS Search Results

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a(n) = sum of comprimes of n which are less than n.

+0
1

0, 0, 0, 2, 3, 9, 5, 20, 15, 26, 19, 54, 23, 77, 41, 59, 63, 135, 53, 170, 79, 125, 109, 252, 95, 249, 155, 242, 167, 405, 119, 464, 255, 329, 271, 419, 215, 665, 341, 467, 319, 819, 251, 902, 439, 539, 505, 1080, 383, 1028, 499, 815, 623, 1377, 485, 1099, 671, 1025 (list; graph; listen)

	OFFSET	`0,4`
	EXAMPLE	`a(9) = 26 because 2,4,5,7,8 are coprime to 9, and 2+4+5+7+8 = 26.`
	CROSSREFS	`Adjacent sequences: A109604 A109605 A109606 this_sequence A109608 A109609 A109610` `Sequence in context: A065631 A083173 A120725 this_sequence A127612 A038756 A011164`
	KEYWORD	`nonn`
	AUTHOR	`Andrew Weimholt (andrew(AT)weimholt.com), Jul 31 2005`

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Last modified May 16 23:01 EDT 2008. Contains 139884 sequences.

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