id:A143770 - OEIS Search Results

Search: id:A143770

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Numbers n such that n, 2n, 3n are all highly composite numbers

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2, 12, 60, 120, 840, 2520, 5040, 27720, 55440, 110880, 166320, 720720, 1441440, 2162160, 3603600, 7207200, 10810800, 36756720, 61261200, 122522400, 183783600, 367567200, 698377680, 2327925600, 3491888400, 6983776800, 13967553600 (list; graph; listen)

	OFFSET	`1,1`
	EXAMPLE	`120 qualifies because all of 120, 240 and 360 are highly composite.`
	CROSSREFS	`A002182` `Sequence in context: A001758 A037133 A009618 this_sequence A062478 A005430 A094434` `Adjacent sequences: A143767 A143768 A143769 this_sequence A143771 A143772 A143773`
	KEYWORD	`nonn`
	AUTHOR	`J. Lowell (jhbubby(AT)mindspring.com), Aug 31 2008`
	EXTENSIONS	`Extended by R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Sep 12 2008`

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Last modified December 3 22:15 EST 2009. Contains 170310 sequences.

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