id:A124195 - OEIS Search Results

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a(1)=1. a(n) = n - GCD(a(n-1),n).

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1, 1, 2, 2, 4, 4, 6, 6, 6, 8, 10, 10, 12, 12, 12, 12, 16, 16, 18, 18, 18, 20, 22, 22, 24, 24, 24, 24, 28, 28, 30, 30, 30, 32, 34, 34, 36, 36, 36, 36, 40, 40, 42, 42, 42, 44, 46, 46, 48, 48, 48, 48, 52, 52, 54, 54, 54, 56, 58, 58, 60, 60, 60, 60, 60, 60, 66, 66, 66, 68, 70, 70, 72 (list; graph; listen)

	OFFSET	`1,3`
	LINKS	`Leroy Quet, Home Page (listed in lieu of email address)`
	MATHEMATICA	`f[l_List] := Block[{n = Length[l] + 1}, Append[l, n - GCD[l[[ -1]], n]]]; Nest[f, {1}, 75] (Chandler)`
	CROSSREFS	`Sequence in context: A080606 A083535 A070320 this_sequence A079584 A004079 A096494` `Adjacent sequences: A124192 A124193 A124194 this_sequence A124196 A124197 A124198`
	KEYWORD	`nonn`
	AUTHOR	`Leroy Quet Dec 06 2006`
	EXTENSIONS	`Extended by Ray Chandler (rayjchandler(AT)sbcglobal.net), Dec 11 2006`

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

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