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Search: id:A068859
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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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2
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| 3, 15, 120, 360, 5040, 201600, 256032000, 4064251968000, 1024126980000259968000, 29365589556381243259975904529351552000, 82421263677202543043706796882184010324019881962069201381742720000
(list; graph; listen)
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OFFSET
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1,1
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EXAMPLE
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120 = 10*12 belongs to this sequence and 360 = 18*20 is the smallest such multiple of 120.
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CROSSREFS
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Cf. A068857, A068858.
Sequence in context: A136739 A060639 A068052 this_sequence A006454 A112228 A093571
Adjacent sequences: A068856 A068857 A068858 this_sequence A068860 A068861 A068862
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KEYWORD
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nonn
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AUTHOR
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Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Mar 12 2002
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EXTENSIONS
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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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