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A098694
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Double-superfactorials: Prod[k=1..n, (2k)! ].
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2
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2, 48, 34560, 1393459200, 5056584744960000, 2422112183371431936000000, 211155601241022491077587763200000000, 4417964278440225627098723475313498521600000000000
(list; graph; refs; listen; history; internal format)
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