id:A085912 - OEIS Search Results

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Group the natural numbers such that the product of the terms of the n-th group is divisible by n!. (1),(2),(3,4),(5,6,7,8),(9,10,11,12),(13,14,15,16,17,18),(19,20,21,22,23,24),... Sequence contains the product pertaining to groups.

+0
4

1, 2, 12, 1680, 11880, 13366080, 96909120, 424097856000, 3100796899200, 37276043023296000, 273589847231500800, 7359037761652306329600, 54123776422857453312000, 2844359511118991175518208000 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`Obviously the n-th group has at most n terms.`
	CROSSREFS	`Cf. A085913, A085914, A085915.` `Sequence in context: A069714 A123743 A111180 this_sequence A085895 A090904 A125295` `Adjacent sequences: A085909 A085910 A085911 this_sequence A085913 A085914 A085915`
	KEYWORD	`nonn`
	AUTHOR	`Amarnath Murthy and Meenakshi Srikanth (amarnath_murthy(AT)yahoo.com), Jul 10 2003`
	EXTENSIONS	`More terms from Ray Chandler (rayjchandler(AT)sbcglobal.net), Sep 15 2003`

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Last modified November 24 23:16 EST 2009. Contains 167481 sequences.

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