id:A133411 - OEIS Search Results

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Smallest highly composite number of the form k*a(n-1) where k is an integer greater than 1.

+0
1

1, 2, 4, 12, 24, 48, 240, 720, 5040, 10080, 20160, 221760, 665280, 8648640, 17297280, 294053760, 5587021440, 27935107200, 642507465600, 1927522396800, 13492656777600, 26985313555200, 782574093100800, 24259796886124800 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`Conjecture: subsequence of A019505.`
	EXAMPLE	`6 is not in the sequence because 6 is not a multiple of 4, the previous term`
	CROSSREFS	`Cf. A002182.` `Sequence in context: A089822 A079352 A089888 this_sequence A004645 A045687 A057422` `Adjacent sequences: A133408 A133409 A133410 this_sequence A133412 A133413 A133414`
	KEYWORD	`nonn`
	AUTHOR	`J. Lowell, jhbubby(AT)mindspring.com, Nov 25 2007`
	EXTENSIONS	`a(12)-a(24) from Donovan Johnson (donovan.johnson(AT)yahoo.com), Sep 09 2008`

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

AT&T Labs Research