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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
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OFFSET
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1,1
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LINKS
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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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KEYWORD
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nonn
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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