id:A057952 - OEIS Search Results

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Number of prime factors of 9^n - 1 (counted with multiplicity).

+0
4

3, 5, 5, 7, 6, 8, 5, 10, 8, 10, 7, 11, 5, 9, 11, 12, 8, 12, 7, 13, 11, 11, 6, 17, 10, 9, 13, 13, 9, 17, 8, 14, 12, 12, 11, 16, 8, 11, 15, 18, 8, 18, 6, 16, 19, 10, 10, 21, 12, 18, 15, 13, 8, 18, 15, 19, 15, 13, 7, 24, 7, 13, 19, 16, 12, 18, 8, 17, 15, 20, 9, 24, 9, 13, 22, 17, 13, 22 (list; graph; listen)

	OFFSET	`1,1`
	LINKS	`S. S. Wagstaff, Jr., The Cunningham Project` `S. S. Wagstaff, Jr., Main Tables from the Cunningham Project.`
	FORMULA	`Mobius transform of A085034 - T. D. Noe (noe(AT)sspectra.com), Jun 19 2003`
	CROSSREFS	`Cf. A057951-A057958, A046051.` `Cf. A085034.` `Sequence in context: A141501 A103988 A086269 this_sequence A111800 A126611 A164019` `Adjacent sequences: A057949 A057950 A057951 this_sequence A057953 A057954 A057955`
	KEYWORD	`nonn`
	AUTHOR	`Patrick De Geest (pdg(AT)worldofnumbers.com), Nov 15 2000.`

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Last modified December 4 08:07 EST 2009. Contains 170310 sequences.

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