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A003317
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Number of unlabeled minimally 2-connected graphs with n nodes (also called "blocks").
(Formerly M0799)
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10
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1, 1, 2, 3, 6, 12, 28, 68, 184, 526, 1602, 5075, 16711, 56428, 195003, 685649, 2447882, 8850157, 32359428, 119492766, 445236635, 1672636369, 6331624545, 24138404479, 92640942148, 357805122286, 1390318899884, 5433781135206
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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3,3
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COMMENTS
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The Pootheri references also contain the edge breakups for each term.
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REFERENCES
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A. M. Hobbs, A catalog of minimal blocks, J. Res. National Bureau Standards, B 77 (1973), 53-60.
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,nice
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AUTHOR
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EXTENSIONS
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More terms from Sridar K. Pootheri (sridar(AT)math.uga.edu), Feb 25 2000
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STATUS
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approved
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