id:A069460 - OEIS Search Results

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Greatest prime factor of prime(n)^n-1.

+0
3

1, 2, 31, 5, 3221, 157, 25646167, 3833, 7792003, 732541, 150332843, 144061, 17615988547, 6177695707, 461017351, 31129845205681, 361353204962363828785531, 903870199, 751410597400064602523400427092397, 25058741, 153436090543, 1750258119644519 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`a(n) = A006530(A069459(n)).`
	LINKS	`Dario Alpern, Factorization using the Elliptic Curve Method.`
	EXAMPLE	`A000040(9)^9-1=23^9-1=1801152661462=27111979*7792003,` `therefore a(9)=7792003.`
	CROSSREFS	`Cf. A069463.` `Sequence in context: A113511 A062008 A091776 this_sequence A117816 A099189 A053234` `Adjacent sequences: A069457 A069458 A069459 this_sequence A069461 A069462 A069463`
	KEYWORD	`nonn`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Mar 24 2002`
	EXTENSIONS	`More terms from Hugo Pfoertner (hugo(AT)pfoertner.org), May 18 2004`

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Last modified December 4 23:11 EST 2009. Contains 170347 sequences.

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