id:A076397 - OEIS Search Results

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Largest prime factor of n-th perfect power.

+0
3

1, 2, 2, 3, 2, 5, 3, 2, 3, 7, 2, 3, 5, 11, 5, 2, 3, 13, 7, 3, 5, 3, 2, 17, 3, 7, 19, 5, 7, 11, 2, 23, 3, 5, 13, 3, 7, 29, 5, 31, 5, 2, 11, 17, 7, 3, 11, 37, 19, 13, 5, 41, 3, 7, 43, 11, 5, 2, 23, 3, 13, 47, 3, 7, 5, 17, 13, 7, 53, 3, 11, 5, 7, 19, 29, 5, 59, 5, 61, 31, 7, 2, 13, 11, 67, 17, 23 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`a(n) = A006530(A025478(n)).`
	LINKS	`Eric Weisstein's World of Mathematics, Perfect Powers.` `Eric Weisstein's World of Mathematics, Greatest Prime Factor.`
	FORMULA	`A006530(A001597(n)).`
	CROSSREFS	`Cf. A025478, A076396, A076403.` `Sequence in context: A164896 A118136 A076396 this_sequence A076403 A157987 A025478` `Adjacent sequences: A076394 A076395 A076396 this_sequence A076398 A076399 A076400`
	KEYWORD	`nonn`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Oct 09 2002`

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Last modified December 7 23:50 EST 2009. Contains 170430 sequences.

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