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A003097
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Critical connected topologies with n points.
(Formerly M2677)
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0
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1, 3, 7, 20, 52, 157, 458, 1436, 4531, 14794, 48944, 165314
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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2,2
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REFERENCES
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N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
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LINKS
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CROSSREFS
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KEYWORD
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nonn,more
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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