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A030428
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a(n) = 0! * 1! * 2! * ... * n! - 1.
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0
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0, 0, 1, 11, 287, 34559, 24883199, 125411327999, 5056584744959999, 1834933472251084799999, 6658606584104736522239999999, 265790267296391946810949631999999999, 127313963299399416749559771247411199999999999
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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0,4
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LINKS
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FORMULA
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MATHEMATICA
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CROSSREFS
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KEYWORD
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nice,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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