id:A046416 - OEIS Search Results

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Repunit of length a(n) has exactly 5 prime factors (counted with multiplicity).

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6, 25, 29, 62, 89 (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.` `Adjacent sequences: A046413 A046414 A046415 this_sequence A046417 A046418 A046419` `Sequence in context: A136606 A074096 A126016 this_sequence A042879 A042495 A018198`
	KEYWORD	`nonn,more`
	AUTHOR	`Patrick De Geest (pdg(AT)worldofnumbers.com), Jul 15 1998.`

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Last modified May 16 23:01 EDT 2008. Contains 139884 sequences.