id:A057954 - OEIS Search Results

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Number of prime factors of 7^n - 1 (counted with multiplicity).

+0
3

2, 5, 4, 8, 3, 8, 4, 10, 7, 8, 4, 13, 3, 9, 7, 13, 4, 12, 4, 14, 7, 9, 5, 18, 5, 8, 12, 13, 5, 14, 5, 16, 9, 8, 7, 18, 5, 9, 8, 18, 5, 15, 4, 15, 12, 9, 4, 22, 8, 11, 10, 13, 5, 18, 6, 19, 10, 9, 6, 24, 6, 11, 11, 20, 9, 17, 6, 14, 10, 18, 4, 26, 7, 10, 11, 13, 9, 17, 4, 24, 17, 12, 9, 22 (list; graph; listen)

	OFFSET	`1,1`
	LINKS	`S. S. Wagstaff, Jr., Main Tables from the Cunningham Project.` `S. S. Wagstaff, Jr., The Cunningham Project`
	FORMULA	`Mobius transform of A085032 - T. D. Noe (noe(AT)sspectra.com), Jun 19 2003`
	CROSSREFS	`Cf. A057951-A057958, A046051.` `Cf. A085032.` `Sequence in context: A015948 A119733 A111570 this_sequence A155896 A060710 A146101` `Adjacent sequences: A057951 A057952 A057953 this_sequence A057955 A057956 A057957`
	KEYWORD	`nonn`
	AUTHOR	`Patrick De Geest (pdg(AT)worldofnumbers.com), Nov 15 2000.`

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Last modified November 22 20:51 EST 2009. Contains 167312 sequences.

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