id:A046417 - OEIS Search Results

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Repunit of length a(n) has exactly 6 prime factors (counted with multiplicity).

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15, 16, 26, 33, 34, 39, 46, 57, 69, 76, 79, 93, 94 (list; graph; listen)

	OFFSET	`0,1`
	LINKS	`Eric Weisstein's World of Mathematics, Repunit` `P. De Geest, Repunits prime factors`
	CROSSREFS	`Cf. A000042, A004022, A046053.` `Sequence in context: A108856 A039689 A063530 this_sequence A079832 A037971 A022105` `Adjacent sequences: A046414 A046415 A046416 this_sequence A046418 A046419 A046420`
	KEYWORD	`nonn,more`
	AUTHOR	`Patrick De Geest (pdg(AT)worldofnumbers.com), Jul 15 1998.`

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Last modified July 25 07:41 EDT 2008. Contains 142293 sequences.