id:A025555 - OEIS Search Results

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Least common multiple (or LCM) of first n triangular numbers (A000217).

+0
4

1, 3, 6, 30, 30, 210, 420, 1260, 1260, 13860, 13860, 180180, 180180, 180180, 360360, 6126120, 6126120, 116396280, 116396280, 116396280, 116396280, 2677114440, 2677114440, 13385572200, 13385572200, 40156716600, 40156716600 (list; graph; listen)

	OFFSET	`1,2`
	LINKS	`T. D. Noe, Table of n, a(n) for n=1..200`
	EXAMPLE	`a(5) = LCM{1, 3, 6, 10, 15} = 30.`
	CROSSREFS	`Sequence in context: A007452 A046981 A065943 this_sequence A140814 A136932 A136945` `Adjacent sequences: A025552 A025553 A025554 this_sequence A025556 A025557 A025558`
	KEYWORD	`easy,nice,nonn`
	AUTHOR	`Clark Kimberling (ck6(AT)evansville.edu) and Asher Auel (asher.auel(AT)reed.edu)`
	EXTENSIONS	`Corrected by James A. Sellers (sellersj(AT)math.psu.edu)`

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Last modified December 4 12:22 EST 2008. Contains 151280 sequences.

AT&T Labs Research