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A003466
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Number of minimal covers of an n-set.
(Formerly M3117)
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0
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0, 3, 28, 210, 1506, 10871, 80592, 618939, 4942070, 41076508, 355372524, 3198027157, 29905143464, 290243182755, 2920041395248, 30414515081650
(list; graph; refs; listen; history; internal format)
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OFFSET
| 2,2
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REFERENCES
| Hearne and Wagner, Minimal covers of finite sets, Discr. Math. 5 (1973), 247-251.
N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
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CROSSREFS
| Sequence in context: A081019 A091120 A045737 * A092637 A094296 A172241
Adjacent sequences: A003463 A003464 A003465 * A003467 A003468 A003469
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KEYWORD
| nonn
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com).
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