id:A033881 - OEIS Search Results

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Abundancy of n-th abundant number: sigma(k)-2k if this is >0.

+0
2

4, 3, 2, 12, 12, 19, 10, 12, 28, 12, 8, 48, 12, 4, 51, 12, 26, 56, 4, 54, 60, 17, 12, 2, 64, 24, 12, 120, 60, 72, 12, 56, 115, 72, 80, 58, 39, 144, 12, 20, 186, 12, 124, 7, 72, 65, 96, 18, 156, 168, 64, 12, 56, 104, 78, 264, 12, 224, 12, 68, 192, 180, 14, 120, 160, 12, 243 (list; graph; listen)

	OFFSET	`1,1`
	MAPLE	with(numtheory): for n from 2 to 500 do if sigma(n) - 2n > 0 then printf(`%d, `, sigma(n) - 2n) fi: od:
	CROSSREFS	`Adjacent sequences: A033878 A033879 A033880 this_sequence A033882 A033883 A033884` `Sequence in context: A065367 A033882 A062111 this_sequence A099406 A061312 A019130`
	KEYWORD	`nonn`
	AUTHOR	`njas`
	EXTENSIONS	`More terms from James A. Sellers (sellersj(AT)math.psu.edu), Feb 19 2001`

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Last modified October 7 14:39 EDT 2008. Contains 144666 sequences.

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