A070592 - OEIS

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A070592

Largest prime factor of the n-th Fermat number F(n) = 2^(2^n) + 1.

3, 5, 17, 257, 65537, 6700417, 67280421310721, 5704689200685129054721, 93461639715357977769163558199606896584051237541638188580280321 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`0,1`
	LINKS	`Eric M. Schmidt, Table of n, a(n) for n = 0..11` `Eric Weisstein's World of Mathematics, Fermat Number`
	CROSSREFS	`Cf. A000215, A050922.` `Sequence in context: A093179 A067387 A050922 * A000215 A123599 A100270` `Adjacent sequences: A070589 A070590 A070591 * A070593 A070594 A070595`
	KEYWORD	`nonn`
	AUTHOR	`Benoit Cloitre, May 12 2002`
	EXTENSIONS	`Offset changed by Arkadiusz Wesolowski, Jul 09 2011`
	STATUS	`approved`

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Last modified May 18 20:27 EDT 2013. Contains 225428 sequences.