id:A087968 - OEIS Search Results

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a(n)=GCD[1+2^n,n^2].

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1

1, 1, 9, 1, 1, 1, 1, 1, 27, 25, 1, 1, 1, 1, 9, 1, 1, 1, 1, 1, 9, 1, 1, 1, 1, 1, 81, 1, 1, 25, 1, 1, 9, 1, 1, 1, 1, 1, 9, 1, 1, 1, 1, 1, 27, 1, 1, 1, 1, 125, 9, 1, 1, 1, 121, 1, 9, 1, 1, 1, 1, 1, 27, 1, 1, 1, 1, 289, 9, 25, 1, 1, 1, 1, 9, 1, 1, 169, 1, 1, 243, 1, 1, 1, 1, 1, 9, 1, 1, 25, 1, 1, 9, 1, 1, 1 (list; graph; listen)

	OFFSET	`1,3`
	EXAMPLE	`n=9: GCD[513,81]=27=a(9)`
	CROSSREFS	`Sequence in context: A078297 A113061 A087966 this_sequence A110483 A010164 A006084` `Adjacent sequences: A087965 A087966 A087967 this_sequence A087969 A087970 A087971`
	KEYWORD	`nonn`
	AUTHOR	`Labos E. (labos(AT)ana.sote.hu), Sep 22 2003`

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.

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