id:A063271 - OEIS Search Results

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Largest factor of 9^(2n)+1, (A063270).

+0
2

2, 41, 193, 6481, 21523361, 42521761, 769, 647753, 926510094425921, 282429005041, 128653413121, 56625998353, 24127552321, 37644053098601, 36214795668330833, 42521761, 1716841910146256242328924544641 (list; graph; listen)

	OFFSET	`0,1`
	PROGRAM	`(PARI) for(n=0, 21, print(factor(9^(2*n)+1)))`
	CROSSREFS	`Cf. A063270.` `Sequence in context: A007533 A088565 A090195 this_sequence A142160 A109125 A065587` `Adjacent sequences: A063268 A063269 A063270 this_sequence A063272 A063273 A063274`
	KEYWORD	`easy,nonn`
	AUTHOR	`Jason Earls (zevi_35711(AT)yahoo.com), Jul 12 2001`

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Last modified September 5 01:39 EDT 2008. Contains 143414 sequences.

AT&T Labs Research