id:A133378 - OEIS Search Results

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a(1)=1. For n>=2, a(n) = the largest prime divisor of (a(n-1)^a(n-1) +1).

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1, 2, 5, 521 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`Does this sequence start to repeat after some term? (ie, Does a(n+m) = a(n) for all positive integers n and some fixed positive integer m?)`
	LINKS	`Leroy Quet, Home Page (listed in lieu of email address)`
	CROSSREFS	`Sequence in context: A138696 A163798 A081296 this_sequence A068105 A065588 A131748` `Adjacent sequences: A133375 A133376 A133377 this_sequence A133379 A133380 A133381`
	KEYWORD	`more,nonn`
	AUTHOR	`Leroy Quet Oct 28 2007`

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Last modified December 6 22:55 EST 2009. Contains 170429 sequences.