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A068859
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a(1) = 3 = 1*3; a(n) = smallest multiple of a(n-1) which is of the form k(k+2).
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1
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3, 15, 120, 360, 5040, 201600, 256032000, 4064251968000, 1024126980000259968000, 29365589556381243259975904529351552000, 82421263677202543043706796882184010324019881962069201381742720000
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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EXAMPLE
| 120 = 10*12 belongs to this sequence and 360 = 18*20 is the smallest such multiple of 120.
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CROSSREFS
| Cf. A068857, A068858.
Sequence in context: A121422 A060639 A068052 * A006454 A112228 A093571
Adjacent sequences: A068856 A068857 A068858 * A068860 A068861 A068862
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KEYWORD
| nonn
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AUTHOR
| Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Mar 12 2002
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EXTENSIONS
| More terms from Sascha Kurz (sascha.kurz(AT)uni-bayreuth.de), Mar 23 2002
Edited by Don Reble (djr(AT)nk.ca), Sep 12 2003
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