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OFFSET
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1,2
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COMMENTS
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Terms of the sequence can be presented as products of the following distinct prime factors: 1, 3, 3*11, 3*11*131, 3*11*131*17291, 3*11*131*17291*298995971. Alexander R. Povolotsky, Jan 19 2012
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LINKS
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FORMULA
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a(n) = product(A126604(k), k=2...n) for n >= 2.
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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