id:A045782 - OEIS Search Results

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Number of factorizations of n for some n (range of A001055).

+0
3

1, 2, 3, 4, 5, 7, 9, 11, 12, 15, 16, 19, 21, 22, 26, 29, 30, 31, 36, 38, 42, 45, 47, 52, 56, 57, 64, 66, 67, 74, 77, 92, 97, 98, 101, 105, 109, 118, 135, 137, 139, 141, 162, 165, 171, 176, 181, 189, 195, 198, 203, 212, 231, 249, 250, 254, 257, 267, 269, 272, 289 (list; graph; listen)

	OFFSET	`1,2`
	LINKS	`Florian Luca, Anirban Mukhopadhyay and Kotyada Srinivas, On the Oppenheim's "factorisatio numerorum" function`
	FORMULA	`The Luca et al. paper shows that the number of terms with a(n) <= x is x^{ O( log log log x / log log x )}. - N. J. A. Sloane, Jun 12 2009`
	CROSSREFS	`Cf. A001055, A045783.` `Sequence in context: A055600 A139528 A117290 this_sequence A064005 A026285 A013930` `Adjacent sequences: A045779 A045780 A045781 this_sequence A045783 A045784 A045785`
	KEYWORD	`nonn`
	AUTHOR	`David W. Wilson (davidwwilson(AT)comcast.net)`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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