id:A078553 - OEIS Search Results

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Largest prime dividing sigma[4,n].

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17, 41, 13, 313, 41, 1201, 257, 73, 313, 7321, 41, 14281, 1201, 313, 41, 41761, 73, 3833, 313, 1201, 7321, 139921, 257, 601, 14281, 193, 1201, 353641, 313, 1129, 241, 7321, 41761, 1201, 73, 10529, 3833, 14281, 313, 10313, 1201, 521, 7321, 313 (list; graph; listen)

	OFFSET	`1,1`
	FORMULA	`a(n)=A006530[A001159(n)]`
	EXAMPLE	`Observe nontrivial frequent occurrence of several primes like 73,313,14281,etc.`
	CROSSREFS	`Cf. A006530, A001157-A001160, A071190.` `Sequence in context: A070142 A070143 A140679 this_sequence A076330 A087658 A078655` `Adjacent sequences: A078550 A078551 A078552 this_sequence A078554 A078555 A078556`
	KEYWORD	`nonn`
	AUTHOR	`Labos E. (labos(AT)ana.sote.hu), Dec 05 2002`

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Last modified August 29 17:54 EDT 2008. Contains 143238 sequences.

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