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A321207
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a(n) = (n*n!)^3.
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0
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1, 64, 5832, 884736, 216000000, 80621568000, 43912253952000, 33560740233216000, 34835065137266688000, 47784725839872000000000, 84653556693609480192000000, 189912972073787235237888000000, 530482432188949589775089664000000, 1818063982946861510421834104832000000
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OFFSET
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1,2
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LINKS
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FORMULA
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MAPLE
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seq((n*(n)!)^3, n=1..20) ;
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PROG
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CROSSREFS
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KEYWORD
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nonn,easy
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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