id:A075988 - OEIS Search Results

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Number of k satisfying 1<=k<=n and 0 < <n/k> < 1/2, where <n/k> is the fractional part of n/k; i.e. <n/k>=n/k-Floor(n,k).

+0
3

0, 0, 0, 1, 1, 1, 3, 2, 3, 4, 4, 4, 7, 5, 5, 8, 9, 6, 10, 8, 10, 12, 10, 10, 14, 13, 13, 13, 15, 13, 19, 16, 16, 18, 16, 17, 24, 20, 18, 20, 23, 21, 25, 23, 23, 25, 25, 23, 30, 26, 28, 30, 28, 26, 30, 30, 34, 34, 32, 28, 37, 35, 31, 36, 37, 37, 41, 35, 37, 37, 41, 38, 46, 42, 40 (list; graph; listen)

	OFFSET	`1,7`
	FORMULA	`Sum_{k=1..n} (ceil(n/k)-round(n/k)). - Vladeta Jovovic (vladeta(AT)Eunet.yu), Mar 01 2004`
	CROSSREFS	`Cf. A075989, A076990.` `Adjacent sequences: A075985 A075986 A075987 this_sequence A075989 A075990 A075991` `Sequence in context: A098822 A131597 A077070 this_sequence A029150 A055923 A035634`
	KEYWORD	`nonn`
	AUTHOR	`Clark Kimberling (ck6(AT)evansville.edu), Sep 28 2002`

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Last modified May 16 01:24 EDT 2008. Contains 139630 sequences.

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