A058346 - OEIS

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A058346

a(1) = 1; a(n+1) = LCM( sum{k=1 to n}[a(k)], (product{k=1 to n}[a(k)])*(sum{k=1 to n}[1/a(k)]) ).

1, 1, 2, 20, 408, 2249424, 1098000299233152, 1361974282591521291068503774196960256 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,3`
	EXAMPLE	`a(4) = LCM(1 +1 +2, 1 1 2 *(1 +1 +1/2)) = LCM(4, 5) = 20.`
	CROSSREFS	`Sequence in context: A185281 A090309 A002116 * A165554 A009746 A009749` `Adjacent sequences: A058343 A058344 A058345 * A058347 A058348 A058349`
	KEYWORD	`nonn`
	AUTHOR	`Leroy Quet Dec 14 2000`

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Last modified February 15 16:28 EST 2012. Contains 205823 sequences.