id:A000477 - OEIS Search Results

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Related to the divisor function.
(Formerly M4973 N2135)

+0
1

1, 15, 76, 275, 720, 1666, 3440, 6129, 11250, 17545, 28896, 41405, 65072, 85950, 128960, 162996, 238545, 286995, 404600, 482160, 662112, 756470, 1042560 (list; graph; listen)

	OFFSET	`1,2`
	REFERENCES	`J. Touchard, On prime numbers and perfect numbers, Scripta Math., 129 (1953), 35-39.`
	CROSSREFS	`Adjacent sequences: A000474 A000475 A000476 this_sequence A000478 A000479 A000480` `Sequence in context: A051880 A007328 A049391 this_sequence A041430 A051423 A128272`
	KEYWORD	`nonn`
	AUTHOR	`njas`

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Last modified January 7 11:41 EST 2009. Contains 152824 sequences.

AT&T Labs Research