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A092918
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Number of connected hypergraphs (without multiple edges and without empty edges) on n labeled vertices.
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16
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2, 4, 96, 31840, 2147156736, 9223372011084915712, 170141183460469231602560095199828453376, 57896044618658097711785492504343953923912733397452774312021795134847892828160
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,1
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LINKS
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FORMULA
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E.g.f.: log(Sum(2^(2^n-1)*x^n/n!, n=0..infinity)).
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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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