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A025557
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a(n) = (n+1)!/LCM{1,3,6,...,C(n+1,2)}.
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1
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2, 2, 4, 4, 24, 24, 96, 288, 2880, 2880, 34560, 34560, 483840, 7257600, 58060800, 58060800, 1045094400, 1045094400, 20901888000, 438939648000, 9656672256000, 9656672256000, 231760134144000, 1158800670720000, 30128817438720000, 271159356948480000
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OFFSET
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1,1
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LINKS
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MATHEMATICA
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Table[(n+1)!/LCM@@Accumulate[Range[n]], {n, 30}] (* Harvey P. Dale, May 09 2024 *)
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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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